Tài liệu học photoshop

8/10/2019 Ti liu hc photoshop

1/59

CHNG I:GII THIU

PITSTOP

PROFESSIONAL


2/59

I. VNG LM VIC CA PITPRO TRONG PHN MM ACROBAT:

Givai tr l mt plug-in trong phn mm Adobe Acrobat, Pitstop Professional thchin vic chnh sa, kim tra cc i tng trong ti liu pdf, gip ti liu p ngy cc tiu chun v in n. Do , vng lm vic ca Pitstop Professional nmtrong phn mm Adobe Acrobat v i tng chu tc ng l ti liu c nh dng

pdf.

1.

Vng lm vic ca Pitpro trong phn mm Adobe Acrobat.

Sau khi ci t, Pitpro s nm trong phn Plug-in ca phn mm AdobeAcrobat. Pitpro c 2 menu chnh c trng l Certified PDF vPlug-in/EnfocusPitPro. Ngoi ra, cng ging nhcc phin bn trc y, cc menu ca PitProc tch hp vi menu ca Acrobat, tp trung trong Edit, Toolsv Window.

Tt cnhng lnh lm vic c trong cc menu tch hp u nm trong Plug-in/Enfocus PitPro.


3/59

Cc thanh cng c lm vic ca Pitstop s nm chung hay nm pha dithanh cng cca phn mm Adobe Acrobat (ta c thddng ko chng n vtr m chng ta mong mun). Mt iu dnhn thy l cc menu ca PitPro uc bt u bng tEnfocus. Chng c thc hin thhay tt bng lnhView/Toolbars/Enfocus. l cch hin th ngn gn cc cng c trn thanhtoolbar, nu mun xem chi tit cc lai cng ckhc n bn trong cc cng ccthclick vo du tam gic en bn phi v chn Expand this button hin

thtt cnhng cng cm Pitpro cung cp.

2.

Giao din ngn ng:

C ththit lp cho ton bnhng menu v hp thoi lm vic bng 1 trong 5lai ngn ngphbin trong Edit/Preferences/Pitpro/Language.

3.

Gii thiu khi qut mt shp thoi ca Pitpro:

3.1.Show enfocus cropping tool

3.1.1. nh ngha:Page cropping template cho bit rng v chiu cao ca

cc dng trang khung cng v tr tng i ca chng trong ti liuPDF. C ththit lp nhng ty chn sau cho page cropping template:

- Loi bcc i tng nm ngoi khong ct xn (bleed).- Vng tm ca khthnh phm (trim).

- Lm mvng bn ngoi khthnh phm.

- nh n vo (points, picas, inches, cm, mm).

- Ni dung ca ti liu PDF.

Dng page cropping template, c ththit lp khung an ton (A), khthnh phm (B), khong ct xn (C),khung crop v khgiy (D)cnglc. Ngoi ra cng c thnh vtrtng i, kch thc cho chngtrong ti liu PDF


4/59

3.1.2.

Mc ch sdng:

- Page cropping template c bit c ch nu mun thit lp kch thcv vtr tng i cc dng khung trang cho mt tp hp gm nhiu tiliu PDF ging nhau mt cch hp l v ng b. Vtr tng i y ngha l vtr ca cc loi trang khung vi nhau. V d, khong ctxn nn ln hn 5mm cho tt ccc chiu so vi kh thnh phm vkhgiy nn ln hn 5 mm cho tt ccc chiu so vi khong ct xn.

y khng cp n v tr tuyt i v c thddng di chuynchng trn mn hnh.

- V d, ang c mt file qung co bng PDF, phi thit lp kch thcv vtr tng i cho cc khung trang cho ti liu PDF ny mt cchhp l. Tuy nhin vtr ny c ththay i ty thuc vo file gc. Mcd c c gng thay i cc khung trang bng cch dng EnfocusGlobal change, nhng cng khng c kt quv:

Phi th

c hi

n vi

c thay

i ny l

p

i l

p l

i nhi

u l

n cho t

ng

loi page box.

Vtr tuyt i ca chng phthuc vo file gc.

3.1.3.

Cch sdng page cropping template:

- To v qun l page cropping template: ngoi vic to v ng dngpage cropping template cn c th qun l n nhxa, nhp vo vxut i mt page cropping template.

- To v ng dng page cropping template: thc hin nhsau

Click chn thanh cng c Enfocus Cropping Tool . (Numun c th vo Window/Show Enfocus Inspector hin thEnfocus Inspector).

Chn dng khung trang trong danh sch ri nh v tr v kchthc cho n

A:Khong cch tcnh tri (vtr thp hn X).

B:Khong cch tcnh thp hn (vtr thp hn Y).

C:Chiu rng (kch thc X).

D:Chiu cao (kch thc Y).

E:Khong cch tcnh phi (vtr cao hn X).

F:Khong cch tcnh cao hn (vtr cao hn Y).


5/59

Nu mun, chn thm nhng ty chn khc cho kh thnh phm,khong ct xn v khgiy.

Chn Page range la chn vng s p dng page croppingtemplate.

Chn Apply.

Click vo khung trang ang hin thnh v tr cho chng trntrang ti liu PDF.

Chn Apply

Chn Manage/Savelu page cropping template va to.

- Qun l page cropping template:

Vo Window/Show Enfocus ENspector hin th Enfocus

Inspector(hoc click vo thanh cng cEnfocus Crooping Tool). Lm theo mt trong cc bc sau:

Xa mt page cropping template: chn n trong danh sch riclick Manage/Delete.

Mun chia s hay trao i page cropping template vi bnngoi, chn n trong danh sch ri vo Manage/Export. ttn file cho n (*.epc) ri chn OK.

nhp mt page cropping template t ngoi vo, chnManage/Import, chn file cn nhp (*.epc hay *.pbt hay ccdng phin bn trc ) ri chn OK.

3.2.Show enfocus view modes:

3.2.1.

Hide annotations: khng c hp thoi.

3.2.2.

Show page boxes:Xem cc dng khung trang

- L nhng hnh ch nht o c v ra xung quanh nhng i tng

khc nhau trn mt trang hoc xung quanh chnh bn thn trang . Nging nhmt dng khung trang m tcho ti liu PDF.

A:Lm mvng pha ngoi khong ctxn: c hay trong sut.

B:Vng tm cho khthnh phm.

C:Di chuyn khgiy n vtr 0.0.

D:Xa cc i tng nm ngoikhong ct xn.


6/59

- Thng thng, khng ththy c nhng page boxes ny nu khngci t ty chn Page Display trong Edit/Preferences/General caAcrobat hoc nu khng dng Pitpro hay mt cng cchnh sa khc.

3.2.2.1.

Cc dng khung trang:

- Media box (khgiy): l dng page box ln nht, c kch thcging nhkch thc trang (A4, A5, US letter). Media box cchn khi in ti liu ra nh dng file PS hay PDF. Ni cch khc,n quyt nh kch thc vt l ca ti liu c in ra.

- Bleed box (khong ct xn): ti liu PDF cng c mt bleed box.Bleed c nh ngha l khong trn lca hnh nh, bleed csdng m bo cho vic thnh phm sau ny nu c sai st thhnh nh cng skhng bl trng.

- Trim box (khthnh phm):l kch thc sau cng ca ti liusau khi in v xn (kch thc sau thnh phm).

- Art box: l khung c v xung quanh ni dung tht ca trang,khung trang ny c sdng khi xut ti liu PDF sang cc ngdng khc.

- Crop box: l kch thc trang ca ti liu PDF hin th trongAcrobat, chxem thng thng th chc ni dung ca khungcrop c hin thtrong Acrobat.

3.2.2.2.

Khung an ton v vng an ton

- Safety box l vng nhn thy c v nhhn khthnh phm mtcht, n cha tt ctext v cc i tng khc ca ti liu. Khonggia khung an ton v kh thnh phm c gi l vng an ton, l vng m ta khng c t bt ki tng hay text nongoi trnhng i tng trn l.

- Safety box l phn b trcho vic thnh phm khng chnh xc,v dnh:

Cc trang bct ln vo trong so vi vtr bon ct v thtext vcc i tng c thbmt i.

A:Khung media

B:Khung bleed

C:Khung trim

D: Khung ni dung ti liu.


7/59

Khi thnh phm phi c ltrang th cc lc c thlm mti text hay i tng nm st ra lcn c.

3.2.2.3.

Sdng khung trang

- Page boxes rt c ch trong vic nh li kch thc cho i tnghay trang ti liu. C th thc hin vic thay i ny trong Pitpro

bng mt trong nhng cch sau: Vo Enfocus Global Change.

Vo Enfocus Action list.

Vo Enfocus Cropping tool.

Vo Enfocus PDF Profile.

3.2.2.4.

Xem thng tin bn ngoi khung crop

- Mt c tnh mi tPDF version 1.3 l khnng t nhng thngtin ca ti liu bn ngoi vng thnh phm. Trong ngnh in, nhngthng tin ny bao gm bleed, bon chng mu, cc lai bon khc vthang kim sot mu. xem nhng thng tin ny, chn cng cView Page Boxes.

- Nhng thng tin ny c to ra t nhng phn mm ng dngtrc khi chuyn thnh file PDF, v d nh phn mm AdobePagemaker. Nhng thng tin ny c thc chnh sa, thm, xa

nhcc i tng ha khc trong Acrobat nu dng Pitpro.- Mt sti liu PDF khi c to ra tcc phn mm ng dng s

khng c nhng thng tin v bleed, bon chng mu, cc bon inkhc v thang kim sot mu (do khng thit lp), khi nhnchn cng cView Page Boxes th skhng c tc ng g m chxut hin nhng ng trim mng cc cnh ca trang.

3.2.2.5.

Xem khthnh phm v khong ct xn ca ti liu PDF

- M ti liu PDF bt k, click chn cng c View Page Boxes,Acrobat shin thkch thc trim, cc bon trim (nu c), cc bon

A:Khgiy

B:Khthnh phm

C:Vng an ton


8/59

in v chng mu (nu c), bleed (nu c), thang kim sot mu(nu c).

3.2.3.

Show wireframe: hin th ti liu PDF ch wireframe:View/Toolbars/Enfocus View modes

Ti liu c thc xem 1 trong 2 chsau:

- Preview:y l chxem thng thng c sdng bt kphn mm no, khi cc i tng, chhay trang u c hinthging nhchng sc in ra.

- Wireframe: khi xem bng ch ny th cc i tng sc

hin thbng outline, chc thchl nhng thanh xm (greeked)chkhng c hin ththnh nhng k tring l. C thci tty chn ny trong Edit/Preferences

Lu :chn chWireframe trong nhng trng hp sau:

- Xem v chn cc i tng nm trn cc i tung khc m vicnm trn ny kh phn bit nu xem chpreview.

- Xem v chnh sa bn che.

- Gip hin thnhanh hn do hnh nh qu nng v nhiu.

A:Bon trim

B:Kch thc trim

C: Bon chng mu

D:Trn l

E:Khgiy

A:i tng dng outline.

B:Text dng nhng thanh xm


9/59

3.2.4.

Speed up image display: iu chnh tc hin thnhiu hnh nh lintc:

- Khi lm vic vi nhng ti liu PDF cha nhiu hnh nh phngii cao, ngi dng lun mun tc hin thca Acrobat nhanhhn i vi nhng hnh nh . Thc hin iu ny bng cch chnthanh cng cSpeed up Image Display, vi chc nng ny th tiliu PDF sc hin thnhanh hn nhng vi phn gii thp.

Nu lnh ny khng c tc dng, c thchn nhng hnh nh nyvo Action list chuyn thnh phn gii thp.

3.2.5.

Show enfocus navigator:hin thkt quca vic kim tra Action listhay PDF profile, thm ch ckt qusau khi chnh sa hay thay i.Mc ny sc tm hiu knhng phn sau.

3.3.Show enfocus view and file control panel

3.3.1.

Gii thiu hp thoi Enfocus view and file control panel

3.3.1.1.

Xc nh, qun l chxem v ci t file.

- Mti liu PDF.

- Vo Window/Show enfocus view and file control panel.

- Hp thoi hin ln chmc nh. Nhp chn Manage/Newthit lp mc mi. t tn , quan st ta thy c 4 hng mc:

Display: trong y c cc mc nhhnh vta la chn, tyvo mc ch v yu cu s dng i vi tng ti liu m tathit lp cho ph hp.

View modes: chxem

Acrobat color management: qun l mu ca Acrobat

File Setting: ci t file

A:Hin thhnh nh phn gii cao.B:Hin thhnh nh phn giithp dng Speed up Image display.


10/59

- Sau khi chn xong nhn OK, ri ng hp thoi li.

Trong Manage, ta c th thc hin vic qun l vi cc chc nngnh: Remove(bci t); Import(nhp file ci t tngoi vo vinh dng file *.epm); Export (xut file ci t ra ngoi); Duplicate(to thm mt bn sao file ci t va thit lp).

3.3.1.2.

Kim tra v chy nhng chnh sa

Ngoi vic ci t, qun l, nhng file ci t cng c thchnh sac.

- Mti liu PDF.

- Vo Window/Show enfocus view and file control panel.

- Hp thoi hin ra, chn file cn chnh sa.

- Vo Manage/Edit. Hp thoi ca file cn chnh sa s hin th,chn phn cn chnh sa. Sau , mt hp thoi hin ra hi xem c

lu hay khng, ta chn Yeslu li nhng g chnh sa.- Vic cn lm tip theo l phi kim tra li nhng g chnh sa

c bt cha, nu thy du hiu n th ta chn Fix n chuyn thnh n xanh hoc chn Fix allbt ht nhng gta chnh sa trc .

3.3.2.

Chc nng cthca tng mc nhtrong hp thoi Enfocus view and

file setting.

3.3.2.1.

Mc Display:

- Overprint preview: cng ging trong cc ng dng ha,Pitstop cng cho chc nng overprint preview.

- Use Local fonts (sdng font ni b): khi xem mt ti liu PDFth c nhng font chca ti liu khng c nhng vo:

Nu sdng chc nng ny: th Acrobat sly font ca my

view ti liu. Nu khng s dng chc nng ny: th Acrobat s thay th

nhng font khng c nhng ny bng nhng font ca n.


11/59

- Display large images (hin thhnh nh nguyn kch thc): yl mt ty chn trong preferences ca Acrobat, chthc hin chcnng ny nu my tnh nhanh.

- View grid(xem li): y cng l chc nng ca Acrobat, Pitprochc canh hng cc i tng hay text bng guide.

- Snap to grid (tng ht vo li): khi di chuyn i tng ngn nhng ng li th i tng s b ht vo v tr cang li ngay ti .

- View transparent grid (xem li dng trong sut): nu chn tychn ny th mt li trong sut sxut hin pha sau nhng itng trong sut (hoc nhng ni no khng c hnh nh).

3.3.2.2. Mc View modes:

-

View page boxes (xem khung trang): xem phn trn.- Speed up image display (tng tc hin thhnh nh): xem phn

trn

- Hide annotations (tt li ch gii): c 2 cch thc hin

Dng Acrobat: chn ty chn Show/Hide all comments trongComment/Show Comments & Markups

Dng Pitpro: chn cng cHide annotations

3.3.2.3.

Mc Acrobat color management:


12/59

- Mi mt mode mu sc mt hsmu mc nh, trong hp thoiny c 3 mode mu l RGB, CMYK v GRAY, vic thay i hsmu ny hon ton c th thc hin ddng. Chn Manage/Editv chn hsmu theo mun.

- Chsdng chc nng ny khi hiu r vqun l mu.

3.3.2.4.

Mc File settings:

- File size (kch thc file): chc nng ny dng xc nh kchthc file gii hn cho ti liu PDF, nu ti liu PDF mra c kchthc ln hn th trong bng iu khin ca Enfocus view and files bo li, n s khng tng sa li ny, vic ny phi cthc hin bng tay (nhp s).

- File name length (di tn file): vic gii hn tn file ny c thphthuc vo hthng iu hnh, mi trng lm vic hay do bn

thn t thit lp. Nu tn file qu di, phi thc hin vic sa libng tay (nhp tn mi ngn hn).

- File name (tn file):vic t tn file phi trnh nhng k tkhngc sdng, vic t sai tn file phi c sa li bng tay (ttn mi).

3.4.

Show edit tool:sc gii thiu s lc trong phn cng cdi vphn chnh sa i tng (chng 3).

3.5.

Show enfocus preferences:hng dn ci t nhng lnh, cng c, hpthoi trc khi bt u sdng phn mm Pitstop. Sgii thiu trong

phn ci t Preferences di.

3.6.

Enfocus layer:sp t vtr cc layer ca ti liu.

3.7.Enfocus mask: to bn che cho ti liu. Mc ny sc trnh by r phn chnh sa i tng.

3.8.Enfocus new document:to ti liu PDF mi trong Pitpro.

3.9.

Enfocus path: cc tc ng cho nhng i tng l path (ng thng,hnh chnht, trn...). Mc ny sc trnh by r phn chnh sa itng.


13/59

3.10.Enfocus place

PDF: t mtti liu PDFvo mt ti liuPDF khc. Mcny s ctrnh by r

phn chnh sai tng.

3.11.Enfocus quick

runs: mc nys trnh by r phn Actionlist v PDF

profile.

3.12.

Enfocus

replace: thayth mt itng ny bng i tng khc. Mc ny sc trnh by trong phnchnh sa i tng.

3.13.Enfocus trim box:thit lp khung thnh phm.

3.14.

Enfocus text:nhng vn lin quan n chnh sa text. Mc ny sctrnh by trong phn chnh sa text.

3.15.Enfocus undo and redo: lnh hon tc.

3.16.

Enfocus varnish:

3.17.Show enfocus action list panel:Action list l danh sch nhng lnh thchin vic chnh sa hay ci t, kim tracho ti liu PDF, gip n ginha qu trnh thc hin, tit kim thi gian, Mc ny sc trnh byr nhng phn sau.

3.18.

Show enfocus PDF profile panel:l tp hp nhng tiu chun cn phi ckhi xut ra cho mt ti liu PDF trc khi dng preflight. Mc ny sctrnh by r nhng phn sau.

3.19.Show enfocus global change:thc hin vic thay i mang tnh tng qutcho ton bti liu. Mc ny sc trnh by r phn chnh sa.

3.20.

Show enfocus inspector:hp thoi ny sthay i ty theo tng mc chsdng (vic ny c ci t trong Preference). Mc ny sc trnh

by r nhng phn sau.


14/59

I. GII THIU CNG C:

Pitstop Pro h trcho ngi dng rt nhiu cng cv hp thoi chc nng, tt cc chia lm 7 nhm cthnhsau:

1. Nhm cng cchnh sa:

a. Cng cchn i tng (Select Objects):

- Chn mt hoc nhiu i tng (Select objects).

- Chn cc i tng c chung mt sc tnh, v dnhmu sc,ng vin, k t, cc thuc tnh vin n, (Select Similar Objects)

b.

Cng cchn vng (Select Areas Tools):

- Chn vng hnh chnht (Select Retangular Area)

- Chn vng hnh a gic (Select Polygonal Area)

c. Cng cvv lm thay i hnh dng vng chn (Transform and DrawingTools):

- Di chuyn vng chn

- Xoay vng chn

- Ko xin vng chn

- Thu phng vng chn theo tl

- To hnh chnht

- To hnh elipse

d.

Cng cvk t(Text Tools):

- Chnh sa k ttheo hng ngang

- Chnh sa k ttheo hng dc

- Chnh sa k ttrong on vn bn

e.

Cng cvng (Path Tools):

-

Chnh sa ng (path)- Thm im neo


15/59

- Xa im neo

- To ng path mi

f. Cng chiu chnh v iu hng:

- o mu (Eye dropper)

- Sao chp thuc tnh ca mt i tng (ng vin, mu sc, s

trong sut, cc thuc tnh dnh cho in n) v p dng cho i tngkhc

- Thc o

- ng guide

g.

Cng cchnh sa hnh dng (Edit Form)

2. Nhm cng chin th(View Toolbar):

a.

Hin thli ch gii (Show Annotations)

b.

Hin thkhung trang (Show Page Box)

c. Hin thti liu theo dng khung dy (Show Wireframe)

d.

Tng tc hin thhnh nh (Speed up Image Display)

e.

Mhp thoi Navigator.

3.

Cng cct xn ti liu (Cropping Toolbar)

4.

Nhm cng ciu khin:

a.

Enfocus Inspector: Chnh sa thuc tnh ca i tng c chn.

b.

Global Change: hp thoi cung cp cc cng chiu chnh p dng cho

ci tng c chn, mt trang ti liu hoc cti liu.c.

Hp thoi PDF profile: thit lp, thc hin, qun l PDF profile.


16/59

d.

Hp thoi Aciton list:thit lp, thc hin, qun l Action list.

e.

Hp thoi qun l vic dn nhp ti liu PDF (Place PDF):bao gm ccty chn i vi ti liu sc a vo.

5.

Nhm cng cCertified PDF:c tch hp chung vi cng cca Acrobat

II.

CI T TRONG PREFERENCES:

1.

Tng qut:

- Sln hon tc (Undo)

- Ty chn Hin th trung tmkhi chn i tng: dng cho vic so hnggia cc i tng.

- Ty chn Thay i mu sc con trttrng sang en khi di chuyn bn trnmt i tng: ty chn ny htrcho vic chn i tng xl, tuy nhin ivi nhng ti liu c cha rt nhiu i tng phc tp th khng nn ng dngty chn ny.

- Chc nng giphm Alt v r chut chn i tng. C 2 loi i tng

c phn bit y: i tng nm trong phm vi vng chn

A:Bng iu khin enfocus view vfile setting.

B:Lu thnh nh dng Certified PDF.

C:Certified.net


17/59

i tng nm trn ng bin vng chn

- Ty chn greeked:khi chn chview l wireframe, nu ci t tnh nngny th chsxut hin di dng nhng thanh xm (khng cn thy tng k tring r)

- Ty chn Tng tc hin thhnh nh(sau khi ti liu cha nhng hnh nhc phn gii cao c to ra sn): nu chn vo ty chn ny, hnh nhc phn gii cao sc thay thbng hnh nh c phn gii thp. Trongtrng hp khng thc hin c nn s dng Action List chn nhng hnhnh cn xem ny vo.

- Ty chn Di chuyn i tng ngay khi r vng chn:nu khng chn tychn ny, mun di chuyn i tng bng cng cchn th phi n cng lc phmCtrl.

- Ty chn Khng hin thnhng thng tin cnh bo

- n vo khi lm vic

2. Ngn nggiao din:

- Chn ngn ngkhi lm vic, sau khi chn phi restart my li.

- Ty chn Share Enfocus Language preferencescho php cc sn phm caEnfocus dng chung phn ci t Preferences

3.

Mu sc:

- Quy nh mu cho mt s dng i tng khi c chn, chng hn nh i

tng c dng mt n, i tng l nhng ng nt phc hp, i tng l kt,


18/59

- Quy nh mu cho cc dng khung c bit trong ti liu nh khung ct (Cropbox), khung ct xn (Bleed box), khthnh phm (Trim box),

4. Cng c:

4.1.

Ty chn M hp thoi Enfocus Inspector khi chn nhng cng csau

- Xu hng ca ngi dng lun mun c skt hp cc tnh nng ca cccng c trong cng mt hp thoi (trong Pitpro l hp thoi EnfocusInspector). V d: khi chn cng cselect object, th thng smu shintrong Enfocus Inspector; khi chn text th cc loi font sxut hin cngtrong Enfocus Inspector. Cc cng cnm trong ty chn bao gm:

Cng cchnh sa i tng.

Cng cto i tng.

Cng csao chp thuc tnh.

Cng cht mu.

ng guide.

Thc o.

Cng cchn nhng i tng ging nhau mt sthuc tnh.

Cng cxn (Cropping Tools).

4.2.

Set trim box margins:ty chn ny sthit lp khong cch tnh tkhungtrim n ng gii hn ca ti liu(margin)


19/59

4.3. Ta :gm 2 ty chn

- Ta trc quan

- Ta thc t

5. Guide:

Chn mu hin thcho ng guide dc v ngang

-

Ty chn Hin thhoc n ng guide- Ty chn ng guide c khnng ht i tng: h trcho vic so

hng cc i tng.

- Xc nh phm vi m ng guide c thht i tng


20/59

CHNG III:NG DNGPITSTOP

KIM TRA TILIU PDF


21/59

kim tra v hiu chnh ti liu PDF, Pitstop Professional htrcho ngi sdng haing php sau:

Thc hin qu trnh Preflight thng qua PDF Profile.

Thc hin vic kim tra thng qua Action List.

n trnh by sau bao gm cc vn : nh ngha Preflight, PDF Profile, Action List, ccho PDF Pofile v Action List kim tra cc li trong ti liu PDF.

I.

PREFLIGHT & PDF PROFILE

1. Cc khi nim cbn

- Preflightthc cht l mt thut ngc dng trong ngnh hng khng, y lbc kim tra cui cng trc khi cho my bay ct cnh. T Preflight cdng trong trng hp ny nhm thhin tnh quan trng v cn thit ca vickim tra, chnh sa ti liu PDF trc khi chuyn sang bphn ghi bn v in n.

- PDF Profilel tp hp cc vn cn kim tra mt ti liu PDF, m bo cho ti

liu PDF sau khi thng qua vic kim tra v chnh sa bng hp thoi PDF Profilec thchuyn sang bphn ktip v p ng nhng yu cu c t ra chon phm.

- Khi qut qu trnh Preflight trong Pitstop Professional: gm 8 bc sau:

Mti liu PDF cn kim tra

To mt PDF Profile mi hoc sdng nhng PDF Profile c ci t sntrong hp thoi Action List and PDF Profile Panel.

Sau khi kim tra, Pitstop Pro stng thc hin vic chnh sa da trn PDF

Profile

Ti liu bo co kt qukim tra sxut hin

Trong trng hp cn thit, c thchnh sa li nhng li sai m khng sdng vic chnh sa tng

Trong mt vi trng hp, ngi dng c thdng Action List thc hinvic chnh sa nhng li sai

Chuyn ti liu PDF chnh sa hon chnh cho bphn tip theo

Bphn x l tip theo schuyn ti liu sang bphn cui cng nh in nthng mi.

1.1.

Cc khi nim trong cc hp thoi lin quan n PDF Profile

1.1.1.

Hp thoi PDF Profile Panel

- Generic Enfocus PDF Profile:cc chun kim tra mang tnh chtchung vsmu in trong ti liu.


22/59

- Ghent PDF WorkGroup: cc chun kim tra ty theo loi nphm cn thc hin (tp ch, bo qung co, n phm in tri vi 4mu cbn, n phm in tri c sdng mu pha).

- Outdate PDF Profile: cc chun kim tra c sdng trong nhng ln trc.

- Standard PDFX PDF Profile:cc chun kim trada theo tiu chun ISO.

1.1.2

Hp thoi New Enfocus PDF Profile

- Sau khi m hp thoi Action List and PDF Profile Panel, chnManage/ New, hp thoi New Enfocus PDF Profileshin th

- Hp thoi lit k mt sPDF Profile tiu biu nh:

B&W v3.0:dng kim tra nhng ti liu dng sch in mt muen vi cht lng cao. Mc ch quan trng nht ca chunkim tra ny l m bo trong ti liu chcha nhng i tngin mt mu en.

B&W + 1 Spot v3.0:cng gn ging vi chun kim tra trn,im khc bit duy nht l nhng ti liu cn kim tra yu cuin mt mu en v mt mu pha.

CMYK + 1 Spot 3.0:dng kim tra nhng ti liu c yucu in 4 mu cbn v mt mu pha vi cht lng cao.

CMYK v3.0:dng kim tra nhng ti liu c yu cu in 4mu cbn vi cht lng cao.


23/59

Generic office v3.0:dng kim tra nhng ti liu vn phng vp ng nhng yu cu cho in vn phng v hin thtrn mnhnh.

PDF to Web v3.0:dng kim tra nhng ti liu dnh cho Web.

Soft Proof v3.0:dng kim tra nhng ti liu dnh cho in th

PDF/X-1a:2001 v5.0 v Empty PDF Profile: nhng chun

kim tra cha c ci t.

PDF/X-3:2002 v5.0; PDF/X-3:2003 v5.0; PDF/X-1a:2003v5.0:nhng chun kim tra theo tiu chun ISO.

1.1.3

Hp thoi Enfocus PDF Profile Editor:

-Locking:

Not locked: khng ci t mt m cho profile

Partially locked: kha profile nhng cho php thc hin hai vnsau:

Allow changing Disable all fixes:cho php khng sa li tng.

Allow changing others processing settings: cho php thay inhng ci t vmc processing.

Locked: kha profile bng cch xc lp mt m mc Password.

-Processing:

Disable All Fixes: khng thc hin vic chnh sa khi pht hinli. iu cng mang ngha, PDF Profile ch thc hin vickim tra, tm kim li trong ti liu.

Log fixes: cho php thc hin vic chnh sa li trong qu trnhkim tra.

Pages to show in the preflight report: nhng vn cn c

trnh by trong ti liu bo co kt qukim tra, cthgm nhngvn sau:

K t

Hnh nh

Mu sc

Thuc tnh OPI

Cc dng khung trang

Mc ch ng dng ca ti liu


24/59

Use the same ICC profile for all objects: dng chung ICC Profilecho tt ccc i tng trong ti liu.

Use other setting for image than for other objects:dng nhngci t khc i vi hnh nh hn vi cc i tng cn li.

1.2 Cc khi nim vtiu bo co kt qukim tra:

- Khi pht hin c nhng yu tkhng ph hp vi nhng ci t trong

PDF Profile, nhng yu tny sc trnh by trong ti liu bo cov trong hp thoi Enfocus Navigator.

- C hai dng tiu thng bo khi pht hin li:

Cnh bo (Warning): li pht hin khng thc s nghim trngnhng cn phi c thng bo.

C li (Error): li ny cn phi c chnh sa trc khi chuynsang bphn khc.

- Nhng tiu c dng bo li trong cc phin bn trc v gn y:

2.

To v qun l PDF Profile:

2.1. Qun l cc PDF Profile:

- Trong hp thoi Action List and PDF Profile Panel, mc Managecha cc lnh:

Edit:thc hin vic chnh sa profile.

Duplicating:nhn bn profile.

Remove:xa bprofile.

Nhng phin bn trc Phin bn gn y

Ty chn trong hskim tra

Hin thtrongti liu bo co

Ty chn trong hskim tra

Hin thtrong ti liu

bo co

Caution (Ch ) Caution (Ch ) Warning (Cnh bo) Warning

(Cnh bo)

PDF

Profile

Enforce

(Phi thc hin)

Error (c li) Error (C li) Error (C li)

Warning (Cnh bo) Caution (Ch ) Warning (Cnh bo) Warning(Cnh bo)

ActionList

Error (C li) Error (c li) Error (C li) Error (C li)


25/59

Importing: nhp PDF Profile t phn mm khc vo PitstopProfessional.

Exporting:xut PDF Profile sang mt phn mm ng dng khc.

Rename Category:i tn nhm PDF Profile

Remove Category:xa bnhm PDF Profile.

Importing Category:nhp nhm PDF Profile tphn mm khcvo Pitstop Professional.

Exporting Category:xut nhm PDF Profile sang mt phn mmng dng khc.

Lu :

- i vi chc nng Import, PDF Profile c to trong phin bn hin ti skhngng dng c trong Pitstop Professional phin bn trc .

- i vi chc nng Export, PDF Profile c ci t chkha khi c xut sangphn mm khc svn gici t kha.

2.2. Thao tc to PDF Profile:

- Vo Window/ Show Enfocus PDF Profile Panel hoc chn biu

tng hin th hp thoi Action List And PDF ProfilePanel.

- Chn Manage/ New hin thhp thoi New Enfocus PDF Profile.


26/59

- to PDF Profile da trn cscc profile ci t sn, c thchnbt k profile no. to profile cha c ci t thng tin, chn

profile Empty PDF Profile. Sau chn OK.

Trong hp thoi Enfocus Profile Editor:


27/59

- Ti mc General, tin hnh khai bo cc thng tin c bn v PDFProfile sto nh: tn Profile, tn ngi to Profile, tn tchc to.

- Ty theo nhu cu kim tra, ngi sdng tin hnh khai bo cc thngscn thit cc mc tip theo:

nh dng ti liu (Document Format)

Kim tra xem cu trc ti liu c b nn khng (Document

Compression) Khung trang (Page Box)

Mu sc (Color)

K t(Font)

Vn bn(Text)

ng nt (Line Art)

Hnh nh (Image)

Cc tiu chun ISO i vi ti liu PDF

- Sau khi khai bo xong, chn OK

- Mti liu PDF cn thc hin vic kim tra.

- Ti hp thoi Action List And PDF Profile Panel, chn PDF Profile

va to, chn Run .

Lu :Thao tc to v kim tra theo tng vn cthc trnh by phn ktip.

3.

Cc thao tc kim tra ti liu PDF theo tng vn :

- Vo Window/ Show Enfocus PDF Profile Panel hin th hp thoi ActionList And PDF Profile Panel.

- Chn mc Manage/ New hin thhp thoi New Enfocus PDF Profile.

- Chn Empty PDF Profile, chn OKhin thhp thoi Enfocus PDF Profile

Editor.- Cc vn cthcn kim tra bao gm:

3.1.Kim tra nh dng, hnh thc nn ti liu (Document Format,Document Compression)

- Chn mc Document Format trong khung bn tri hp thoi PDFProfile Editor v khai bo cc thng ssau:

Phin bn PDF: kch hot ty chn PDF Version is less than

PDF 1.3 (phin bn PDF ca ti liu ang dng trc phin bn1.3) v chn chbo li Error.


28/59

nh dng nn: kch hot ty chnCompression is not optimal(hnh thc nn khng ti u) v Ignore non-compress objects(khng xt n nhng hnh khng b nn). V chn ch cnh

bo Warning.Ty chn ny nhm kim tra cht lng hnh nhnn trong ti liu.

Dng m ha ti liu:kch hot ty chn ASCII v chn ch

cnh bo (Warning).

Ngn ngPostscript:ti liu c xut c cht lng cao thphi dng ngn ngPostscript Level 3. Vn ny cn c kimtra nu mun ti liu c in t c cht lng cao

- Chn mc Document Compression: kch hot ty chn DocumentStructure is Compressed (Cu trc ti liu b nn) v chn ch Warning(cnh bo).

3.2.

Kim tra khung trang:

- Chn mc Page Box Layout(btr cc khung trang) v khai bo ccyu tcn kim tra:


29/59

Kch hot ty chn Page Box Layout does not conform withPress Layout(cc khung trang btr khng ph hp vi cng vicin n) v chn chError (bo li).

Khai bo khong cch ti thiu gia khung Media Box v BleedBox (ty trng hp), gia Bleed Box v Trim Box (t2-5mm).

Kch hot ty chn Layout has no Crop Box or Crop Box is

equal to Media Box (ti liu khng c Crop Box hoc Crop Boxc kch thc bng Media Box).

- Chn mc Page Size (Kch thc trang)v kch hot ty chn:

Page Size is not equal for all pages (Kch thc cc trang trongti liu khng bng nhau) v chn chWarning (cnh bo).

Orientation is not equal for all pages(Hng cc trang trong tiliu khng ng nht) v chn ch Warning cnh bo (cnh

bo).

- Chn mc Page Info(Ni dung trong trang) v kch hot ty chn: :

Page is empty(Trang khng cha ni dung).

Ignore graphic elements outside of the Trim box(Khng xt ncc i tng hnh nh nm ngoi khung Trim box).

V chn chWarning(cnh bo).

- Chn mc Page Scaling (thu phng ti liu) v kch hot ty chn

Page scaling is used (Trang ti liu b thu phng) v chn ch Warning(cnh bo).

3.3.

Kim tra vmu sc

- Chn mc Process Color(Mu cbn) v kch hot cc ty chn:


30/59

RGB is used(ti liu c sdng hmu RGB)

Calibrated gray or calibrated RGB is used (Vic chnh muc dng). Vic calibrate mu chthc shu ch khi ton bquytrnh lm vic c calibrate hon chnh.

Lab color is used(ti liu c sdng hmu Lab).

ICC based color is used (ti liu c sdngmu c ngun gc t

ICC).

Ink coverages is higher than (tng % lng mc sdng vtqu bao nhiu). Thng in offset tng % lng mc sdng khngqu 280%.

RGB gray or impure CMYK gray is used (mu xm hmuRGB v mu xm do tng hp mu CMYK c dng trong ti liu).

RGB black or impure CMYK black is used (mu en hmu

RGB v do tng hp mu CMYK c dng trong ti liu).V chn chError(bo li)

Lu :Cc ty chn vkim tra mu nhm hn chssai lch mu khi quan st trnmn hnh v khi in ra thc t.

- Chn mc Spot Color (trong trng hp ti liu ch in bn mu cbn) v kch hot cc ty chn:

Spot color is used (ti liu c sdng mu pha).

Spot color All is used for an element within trim box (kimtra xem nhng i tng dng mu All (cc loi bon kim tra) cnm trong phm vi khthnh phm khng).

V chn chError (bo li).

- Chn mc Multichannelvkch hot ty chn Nchannel color spaceis used(khng gian mu Nchannel c dng trong ti liu) v chn chError(bo li).

3.4.

Kim tra vk t(Font)

- Chn mc Font Type (dng font) v kch hot cc ty chn:

Multimaster font is used: dng k tMultimaster c dng trongti liu v chn chWarning(cnh bo).

Composite font is used: dng k tComposite (kiu k tChu) c dng trong ti liu v chn chWarning(cnh bo).

City font is used: kiu k tCity (bitmap) c dng trong ti liuv chn chWarning(cnh bo).


31/59

- Chn mc Font Embedding(nhng font) v kch hot cc ty chn:

Embedded font is Open Type (Font c nhng l dng font mrng).

Font is not embedded(Font cha c nhng y ) v chnthm tychnInorgefontsoutsidetrim box(Khng xtfont nmngoi khthnh

phm).

3.5.

Kim tra vvn bn (Text)

- Kch hot cc ty chn sau v chn chWarning(cnh bo).

Text is smaller than pt: chdng trong ti liu nhhn mt gi

trno (phthuc vo nhiu yu t).


32/59

Text is smaller than pt and is colored with 2 or moreseparations: ch dng trong ti liu c in thai mu mc trln c kch thc nhhn gi trno (phthuc nhiu yu t).

Text is invisible:chhoc ng vin chkhng mu.

- Kch hot cc ty chn sau v chn chError(bo li).

Black text does not overprint: chen trong ti liu khng c

overprint).

White text does not knockout: ch trng trong ti liu khngc mc trng.

3.6.

Kim tra i tng vect

- Kch hot cc ty chn sau v chn chWarning(cnh bo).

Line weight isless than 0.1pt:dy ng nt

nhhn 0.1pt. Line weight is

less than 1ptand is coloredwith 2 or moreseparations: dy ng ntnh hn 1pt v

c in t2 mumc trln.


33/59

Line Art or Clipping Path contains more than 1.000 nodes:ng nt hay cc hnh vdng ng path cha hn 1000 im(thng sny phthuc vo thit bxut).

Flatness is more than 2.00: flatness i vi ng cong lnhn 2.00.

Flatness is less than 1.00: flatness i vi ng cong nhhn

1.00. Line Art is invisible: nhng ng nt khng mu.

Lu :Flatness lin quan n qu trnh bin dch. Nu flatness ln slm gim chtlng khi bin dch ng cong v lm ng nt bnt khi in. Nu flatness quthp sgy kh khn trong qu trnh in. Do , flatness tt nht nn l 1.0.

3.7.Kim tra vhnh nh

- Mt squi tc cbn cn ghi nhvmi quan hgia phn gii

xut v nhp ca hnh nh: i vi nh mu v chuyn tng (grayscale): phn gii nhp

(dpi) = 2 x phn gii xut (lpi).

i vi nh en trng (1-bit): phn gii nhp = phn giixut (thng t1800 n 2400 dpi).

- Chn mc Image Position(nh vhnh nh trong ti liu), kch hotty chn Image is scaled non-proportionally (hnh nh thu phng

khng theo tl) v chn chWarning(cnh bo).- Chn mc Image Resolution ( phn gii hnh nh), kch hot cc

ty chn:

Resolution ofcolor orgrayscale

image isbelow...dpi: phn giihnh nhgrayscale vmu thphndpi.


34/59

Resolution of color or grayscale image is abovedpi: phngii hnh nh grayscale v mu ln hndpi.

Resolution of 1-bit image is belowdpi: phn gii hnh nh 1bit thp hndpi.

Resolution of 1-bit image is abovedpi: phn gii hnh nh 1bit ln hndpi.

Image has alternate defined: mt hnh nh nhng c nhiu dng:

hnh nh c phn gii thp, hnh nh c phn gii cao v hnhnh c phn gii in.

Image use 16 bit per channel: hnh nh dng 16 bit cho mt knhmu.

- Chn mc Image Compression, kch hot cc ty chn sau v chnchWarning(cnh bo):

Color or grayscale image is: hnh nh bnn vi cc nh dng

khng t cht lng cao nhLZW, Runlength, JPEG2000.

1 bit image is: hnh nh bnn vi cc nh dng khng t chtlng cao nhLZW, Runlength.

Image use JPEG compression and compression ratio is higherthan 10%: hnh nh bnn bng nh dng JPEG v nn hn 10%.

3.8. Kim tra vtiu chun PDF/X:

- Chn mcPDF/X

DocumentcontainsembeddedPostscriptfragments:ti liu chacc on mPostscript.

Documentcontains pre-separationpages: tiliu cha cctrang tchmu.

Detect unknown objects: tm nhng i tng m phn mmAcrobat khng nhn ra.


35/59

- Ty theo nhu cu cn kim tra, ngi s dng c th to tng PDFProfile ring lkim tra theo tng vn nu trn hoc to mtPDF Profile kim tra tt ccc vn trn cng lc.

4.

Thao tc kim tra ti liu theo tng loi n phm:

- Mti liu cn thc hin kim tra.

- Vo Window/ Show Enfocus PDF Profile Panel hoc chn biu tng

hin thhp thoi Action List and PDF Profile.- Click vo biu tng duAdd mc Global PDF Profiles, ty theo nhu cu

n phm chn mt trong cc PDF Profile sau:

4.1. n phm in bn mu cbn v mt mu pha

- Chn mc Generic Enfocus PDF Profiles

- Chn profile CMYK + 1Spot v3.0

4.2. n phm in bn mu cbn:

- Chn mc Generic Enfocus PDF Profiles.

- Chn profile CMYK v3.0.

4.3. n phm theo tiu chun ISO PDF/X:

- Chn mc Standard PDFX PDF Profile.

- Chn mt trong cc profile tiu chun sau:

PDF/X 1a: 2001 v5.0

PDF/X 3: 2002 v5.0

PDF/X 1a: 2003 v5.0

PDF/X 3: 2003 v5.0

5.

Bsung Action List vo PDF Profile:

- Trong mt vi trng hp cn thay i, chnh sa mt s yu t trong ti liutrc khi kim tra, ngi dng c thdng Action List thc hin iu ny. V

vic thc hin c nhanh v thun li, ngi dng c thtch hp hai chc nngny vo trong cng mt PDF Profile v nhng action c bsung sc thchin u tin. Cthcch bsung mt Action List vo mt PDF Profile nhsau:

- Sau khi mhp thoi New Enfocus PDF Profile,chn mt profile v chn OKhin thhp thoi Enfocus PDF Profile Editor.

- Chn mc Action List(nm cui trong bng lit k cc tiu chun).

- Chn ty chn Enable.


36/59

- Chn biu tng Add hin th hp thoi Select Action List, chn ccaction cn b sung (nhn Ctrl chn cng lc nhiu action). Ty chn FromFile cho php chn cc Action List t phn mm khc. Sau khi chn xong,nhn OK.

- Sp xp cc action theo thtcn thc hin

- Chn OKkt thc vic bsung Action List vo Profile.


37/59

I. ACTION LIST:

1. nh ngha

- Action List c hiu l mt thao tc hoc mt chui cc thao tc c ci tsn hoc do ngi dng to nn thc hin vic chnh sa cc yu t trong tiliu PDF.

2. Cc cch to Action List:

- Vo Manage/Newhin thhp thoi Enfocus Action List Editor: chn nhngAction List c sn ri chnh sa theo nhu cu v lu li thnh mt Action Listmi.

- Vn dng hp thoi Enfocus Action List Editor, nhng dng ty chn Recordghi li cc thao tc thc hin bng cng cca Pitstop.

- Dng hp thoi Global Changevi ty chn Save As Action List

- Ti cc Action List trong thvin ti trang web ca phn mm.

2.1.

Dng hp thoi Enfocus Action List Editor:

- Vo Window/ Show Enfocus Action List Panel m hp thoiAction List.

- Chn Manage/ New: hin th hp thoi Enfocus Action ListEditor, in y cc yu tnh: tn Action List, tn ngi to, tntchc to.


38/59

- Chn biu tngAdd hin thhp thoi New Action Type forAction List.

- Tm cc action ph hp vi yu cu cn thc hin thng qua cc dng,cc thmc, cc nhm i tng hoc g tkha vo mc Filter.

- Nu l action thc hin thng xuyn th c th chn Add toFavourites action c lu vo thmc Favourites, tip theo

chn Addaction c a vo hp thoi Enfocus Action ListEditor.

- Tr li hp thoiEnfocus Action ListEditor, xem xt vkhai bo cc thng s bn phi ca hpthoi.

- Tip tc tm v bsung cc action cnthit t hp thoiNew Action Typefor Action List vohp thoi EnfocusAction List Editor.

- Sau khi chn y cc action nhmong mun, chn OK kt thc

thao tc to mt Action List.

- Trli hp thoi Action List and PDF Profile, chn i tng spdng Action List (ton b ti liu, trang hin hnh hay mt s trangtrong ti liu) trong mc Run on, sau chn nt lnh RunActionList thc hin nhim v.

2.2.Dng hp thoi Enfocus Action List Editor vi ty chn Recording:

- Mhp thoi Enfocus Action List Editor

- Khai bo tn Action List cn to, tn ngi to

- Chn Record (khi icon Record smv icon Stop shin r).Mi thao tc sdng cng cca Pitstop Pro sc ghi nh(nhngthao tc i vi cc cng cAcrobat hay Plug-in skhng c ghili).

- Sau khi hon thnh cng vic, ngng vic ghi nhli, chn Stop

- Chn OK.


39/59

2.3.Dng hp thoi Enfocus Global Change vi ty chn Save As ActionList:

- Vo Window/ Show Enfocus Global Change m hp thoiGlobal Change

- C thdng nhng Global Change c thit lp sn hoc t tomt Global Change theo mun

- Chn nhng mc theo yu cu, chn nt lnh Next

- Hp thoi chuyn sang giao din khc khai bo cc thng s cn

thit. Sau chn nt lnh Next

- Hp thoi tip tc chuyn sang giao din khc, chn ty chn Save AsAction List hin th hp thoi Enfocus Action List Editor, incc thng tin vtn Action List, tn ngi to, tn tchc to

- Chn OK, Action List va to sxut hin trong hp thoi Action Listand PDF Profile Panel.


40/59

3. ng dng Action List vo vic kim tra ti liu PDF:

- Vo Window/ Show Enfocus Action List m hp thoi Action List AndPDF Profile Panel.

- Chn Manage/ Newhin thhp thoi Enfocus Action List Editor.

- Chn nt lnh Add hin thhp thoi New Action Type for Action List.

- Chn nt lnh Check .

- Chn nhng chc nng kim tra t khung bn phi ca hp thoi New ActionType for Action List. Sau mi ln chn chc nng, chn nt lnh Addv tinhnh khai bo cc vn lin quan hp thoi Enfocus Action List Editor.

3.1.Kim tra khung trang (Page):

- Chn cc thao tc kim tra nhsau:

Check for empty pages: tm nhng trang trng (khng cha nidung) trong ti liu.

Khai bo trong hp thoi Enfocus Action List Editor nh sau:khng chn vo ty chn Inorge graphic objects completely outside the media box(trim box, bleed box, crop box).


41/59

Check if object is completely outside page box: tm nhng trangc i tng nm ngoi khung trang.

Khai bo trong hp thoi Enfocus Action List Editor nh sau:chn mt trong cc dng khung sau: trim box, bleed box, crop

box, media box.

Check for pre-separated pages: tm nhng trang c tch mutrc (tcc phn mm khc).

3.2.Kim tra Font:

- Thc hin cc thao tc kim tra nhsau:

Check embedded font is Open Type: kim tra xem font cnhng c phi l dng font m rng khng. Trong hp thoiEnfocus Action List Editor, chn ty chn Must hoc Must not.

Check font embedding: kim tra thuc tnh nhng font trong tiliu.

Check font Type: loi bmt trong snhng dng font: Type 1,Type 3, True Type, Multimaster v Composite. Trong hp thoiEnfocus Action List Editor, chn font Composite.

3.3.

Kim tra Line Art

- Check Line weight: kim tra rng ng nt. Trong hp thoi

Enfocus Action List Editor,khai bo rng ti thiu cho php.


42/59

3.4.

Kim tra mu sc

-

Thc hin cc thao tc kim tra nhsau: Check color type: kim tra hmu ang dng cho ti liu. Trong

hp thoi Enfocus Action List Editor,chn ty chn RGB Colorv Any object.

Check ICC Profile version: kim tra v phin bn ICC Profiledng trong ti liu

Check minimum/ maximum CMYK ink coverage:kim tra tng% lng mc dng trong ti liu. Trong hp thoi Enfocus ActionList Editor, khai bo nhsau:

Total ink coverage of a flat CMYK color must be more than

10%.

Total ink coverage of a flat CMYK color must be below than280%.

Check number of spot color:kim tra smu pha dng trong tiliu. Trong hp thoi Enfocus Action List Editor, khai bo smu pha thc tphi dng trong ti liu.

3.5.

Kim tra hnh nh:

- Thc hin cc thao tc kim tra nhsau:

Check for alternated image:kim tra vvic dng cc hnh nhc phn gii thp tng tc hin thti liu.


43/59

Check image compression:kim tra nh dng nn dng cho hnhnh. Trong hp thoi Enfocus Action List Editor, chn nh dngnnZIP.

Check maximum/ minimum resolution: kim tra phn gii tia v ti thiu ca hnh nh. Ty thuc vo dng n phm thchin m khai bo thng s ph hp trong hp thoi EnfocusAction List Editor.

4.

Action List v PDF Profile i vi vic hiu chnh ti liu PDF phc vcho vic in n:

- Trong Pitstop Professional, cc cng cdng cho vic chnh sa rt nhiu v hiuqu. Tuy nhin, c rt nhiu ti liu u phm phi chung mt li, chng hn nhhmu, kch ctrang in, cc thuc tnh trapping, overprint, v.v Thng thngngi sdng vn c thdng cng cchn i tng v hiu chnh thng quaEnfocus Inspector. Tuy nhin, vic lm ny schim rt nhiu thi gian v i khikhng t hiu qunhmong mun. Bn cnh , vic kim tra ti liu trc khighi bn l mt qu trnh cc kquan trng v khng thbqua. Vic kim tratng trang ti liu hay tng i tng sv cng kh khn. Vli c rt nhiu likhng th kim tra mt cch trc quan, v khi chuyn sang RIP th b bo li,chng hn nhnhng li sau: font chcha c nhng, phn gii hnh nhcha ng vi yu cu, khng gian mu khng ph hp, v.v Trong nhngtrng hp ny, cc Action List v PDF Profile scc khu ch i vi ngisdng. Ngi dng chvic to mi, hoc thay i cc tiu chun kim tra tiliu c sn, sau lu chng trong hp thoi Action List and PDF Profile Panel

ri p dng cho ti liu. V cc profile ny hon ton c thdng cho nhng lnsau.

- t c hiu qucao, ngi sdng phi tht cn thn trong vic thit lpcc thng shiu chnh cng nhnhng vn cn kim tra ti liu v theo diqu trnh lm vic, xem xt kt qut c thng qua ti liu bo co (Report)hoc hp thoi Enfocus Navigator. Khi xut hin nhng li c bit m PDFProfile khng thc hin c, ngi sdng stin hnh gii quyt.

-

Bn cnh , vic to cc Action List cn nhm phc vcho vic to Hot Foldertrong phn mm Pitstop Server.

-


44/59

I. HP THOI ENFOCUS NAVIGATOR

- Sau khi dng Action List hay PDF Profile chnh sa mt ti liu PDF th mt bngbo co sxut hin lin sau . Ngoi ra, hp thoi Navigator cng c chc nngbo co tng t. Hp thoi Navigator sthng bo vnhng thay i v ti liu boco s lit k nhng vn kim tra v nhng yu t c thc hin trongAction List.

1.

Cng dng hp thoi Enfocus Navigator:

- Nu trong Edit/ Preferencec ci t chhin thhp thoi Navigator, thhp thoi Enfocus Navigator s xut hin ngay sau khi ti liu c p dngAction List hay PDF Profile. Hp thoi scung cp cho ngi dng nhng vn sau:

Lit k nhng li (error) v nhng cnh bo (warning) sau khi thc hin qutrnh kim tra (preflight).

Lit k nhng hiu chnh c tng thc hin trong qu trnh p dngAction List v PDF Profile.

Lit k nhng li khng thchnh sa c.

Gip ngi sdng ddng theo di bng cch lm ni bt nhng thay icng nhnhng i tng c khnng gp vn trong ti liu.

Trnh by nhng gii php cho tng vn v a ra hng gii quyt nhngvn ny.

2.

Hp thoi Enfocus Navigator:


45/59

2.1.Kt qu(Result):

- Lit k tt c cc li, phn ch , cc li c hiu chnh v cnhng li khng thhiu chnh. Khi chn tng vn , nhng thng tinchi tit sc trnh by cth.

2.2.Xem xt i tng (Object Browser):

- Trong phn ny, trn mn hnh hin thchc nhng i tng nm

trn trang ang c xem xt shin r nhbnh thng.- Ty chn ny cho php ngi sdng c thxem xt kim tra tng

i tng c th trong ti liu. iu ny rt tin li khi mt sitng cn s chnh sa c bit, chnh v vy hp thoi EnfocusInspector c s dng trong trng hp ny nhm h tr cho vicchnh sa n l tng i tng. Sau khi chnh sa bng EnfocusInspector, chn Restart Preflightcp nht vic chnh sa .

2.3. Gii php:

- Lit k nhng li khng th t ng sa cha bng PDF Profile v

ngay ti phn Solution ny sa ra nhng gii php sa nhng vn, c thchn gii php sa tt chay sa tng i tng.

2.4.Bo co:

- Trnh by mt cch chi tit cc li, phn ch , nhng li c sav nhng li cha c sa. Phn trnh by cng chnh l mt ti liuPDF v chia thnh nhng mc sau:

Phn li, cnh bo v khc phc.

Phn thng tin tng qut vti liu: phin bn PDF, tn ti liu, tnngi to v nhng thng tin vbo mt.

Phn thng tin vfont ch: tt cnhng thuc tnh lin quan nfont chdng trong ti liu.

Phn thng tin vhnh nh: vtr, phn gii, trang, c tnh vhmu

Phn thng tin vthuc tnh OPI.

Phn thng tin vhmu dng trong ti liu.


46/59

V. QUICKRUN

- QuickRun l mt chui cc Action List v PDF Profile c tn ti di dng mtlnh. Mt QuickRun bao gm nhiu Action List nhng chduy nht mt PDF Profile.QuickRun rt hiu qui vi nhng ti liu cn chnh sa nhiu bng Action List vkim tra li bng PDF Profile.

- Cch to QuickRuns:

Chn biu tng mhp thoi Configure Enfocus QuickRuns.

Chn biu tng Add mmt QuickRun mi v t tn cho QuickRun sto.

Chn cc Action List v mt PDF Profile bsung vo QuickRun.

Chn OK kt thc qu trnh.

- Qun l QuickRuns:

Chn biu tng mhp thoi Configure Enfocus QuickRuns.

Chn QuickRun cn hiu chnh.

Chn biu tng xa bQuickRuns.

Chn biu tng thay i thtcc Action List.

Lu : thtchy Action list rt quan trng, thtkhc nhau scho kt qukhc nhau.

thhy chy thAction list trc ri hy bt u chy QuickRuns.


47/59

CHNG IV:NG DNGPITSTOP CHNH SA TILIU PDF.


48/59

stop Professsional chyu h trvic chnh sa cho nhng i tng vector hn l chng vo cc i tng bitmap. V thtrong mc chnh sa i tng ny, chxin chyu p n nhng thao tc chnh sa cho i tng vector ca ti liu PDF.

I. CHNH SA I TNG BITMAP.1. nh ngha:

- L nhng hnh c to nn tnhiu pixel (pixel l nhng vung nh, chng

c t st nhau v to nn hnh nh). Mi mt pixel c vtr nht nh v chanhng thng tin m thnh nh, n c thc mu en, trng hay mang mt gi trmu sc no .

- Vic thu phng mt hnh bitmap l rt quan trng v s pixel qui nh cho mthnh l khng i. Khi thu phng, spixel qui nh cho mt hnh vn khng tngln hay gim xung v v thslm cho hnh nh nhbrng ca, mt chi tit dnn cht lng bgim khi in ra.2.

Thao tc vi i tng bitmap.

2.1.

Cc thut ng.- Thay i phn gii (Resample) ngha l thay i s lng v kchthc cc pixel ca hnh nh. Kt qu l kch thc file cng nh chtlng hnh nh sthay i theo 2 cch: Downsample: gim kch thc file cng nh cht lng hnh nh.

Vic lm ny nhm mc ch:Tng tc xl khi chnh sa hay in mt ti liu cha nhiu hnhnh.Thay i phn gii ca hnh nh (dpi) cho ph hp vi phngii khi in ra (lpi) (Qui tc: phn gii nhp bng 2 ln phngii xut).ti ln mng.

Resample up: tng phn gii v s lng pixel ca hnh nh. Spixel thm vo da vo gi trmu ca cc pixel c sn.

- Php ni suy: vic thm vo hay bt i nhng pixel c thc thc hintheo nhiu cch khc nhau: Average resampling: phng php ny tnh ton spixel trung bnh

trong vng ly mu v spixel trung bnh ny vsau s thay thchonhng pixel ctrong vng ly mu vi phn gii chnh.

Subsampling: phng php ny chn mt pixel nm trung tm vngly mu lm im chnh. Nhng pixel xung quanh cn li s ly theogi trca pixel chnh ny. Ngha l, pixel chnh ny slp y vngly mu vi phn gii ch nh. Phng php ny nhanh hn

phng php trn nhng cho kt qukhng mn v lin tc bng. Bicubic resampling: phng php ny tuy chm nhng l phng

php chnh xc hn, cho kt qumn nht. Gi trca nhng pixel mic tnh ton da vo tng gi trca nhng pixel tng ng thnh


49/59

gc. Php ni suy y c tnh ton gia 16 pixel mt ln v thmvo mt cht hiu ng lm sc nt.

Bilinear resampling: y l phng php ni suy cho cht lngtrung bnh, mi ln ni suy gia 4 pixel vi nhau.

Bicubic B Spline resampling: y l phng php ci tin caBicubic resampling (nhiu hiu ng lm sc nt hn), c khuyn codng cho vic tng phn gii. Gim phn gii bng phng php

Bicubic cng cho hiu qucao hn phng php average.- Nn hnh:

Dng JPEG: l dng nn thch hp nht cho hnh grayscale hay hnhmu. Mt v din hnh cho vic nn dng JPEG l hnh c tng lintc (continuous-tone). Loi hnh ny bn thn n cha nhiu thng tin(chi tit) hn khnng hin thtrn mn hnh hay phc chli. V th,vic nn hnh cng c thchp nhn c (v thno th nhng chi tit cng khng thphc ch li c ht). Kt qu l hnh nh sbgim cht lng (v khi nn n s loi b bt chi tit), y gi l

phng php lm gim smt thng tin. Tuy nhin kch thc file lic gim i ng knhphng php nn ny.

Dng ZIP: dng ny s lm gim kch thc nh m khng lm mtchi tit ca nh.

B lc ASCII: dng m ha thng tin hnh nh thnh dng textthng thng (ASCII). Sdng m ASCII nu nh ti liu cn phichuyn i qua li gia cc knh (v chc loi k tASCII mi thchin c vic chuyn i ny). V di vi mt vi phn mm dng

gi email cn dng loi k t ASCII ny (ngy nay c nhngphn mm email khng cn dng loi ti liu c m ASCII). C 2 loim ASCII:ASCII Hex:nhn i kch thc dliu ca hnh nh.ASCII 85:lm tng kch thc dliu ca hnh nh ln khong 25%.

2.2.

Cc thao tc

2.2.1.

Dng hp thoi Enfocus Inspector

2.2.1.1. Xem thuc tnh ca hnh:kch thc, phn gii, thng tin mu

sc, thng tin vvic c nn hnh hay khng?...- Dng cng cchn i tng chn vo hnh cn xem.- MEnfocus Inspector.- Vo Image/Properties.


50/59

2.2.1.2.

Thay i phn gii: Vic thay i phn gii c th thchin i vi mt hnh hay nhiu hnh mt lc.

Mt hnh:

- Dng cng cchn i tng chn hnh cn thay i.- MEnfocus Inspectorv chn Image/Resample.- Thc hin theo mt trong cc bc sau:

Gim phn gii: chn Resample above v xc nhngng gii hn phn gii (dpi). Chc nhng hnh no


51/59

c phn gii cao hn hay bng vi ngng gii hn nymi bgim.Tng phn gii: bchn Resample above.

- Chn phng php ni suy v xc nh phn gii dpicho hnh nh.

- Chn Apply.Nhiu hnh: xem phn thay i phn gii trong mc Thc

hin thay i ton bti liu (Make Global Change).2.2.1.3.

Nn hnh:

- Dng cng cchn i tng chn mt hnh cn nn.- MEnfocus Inspector, chn Image/Compress.- Chn phng php nn: JPEGhay ZIP. Nu chn JPEG hy chn

thm mc cht lng (cht lng cng cao th chi tit hnh nhs c lu gi li cng nhiu nhng ng thi kch thc filecng cng ln).

-

Chn Apply.2.2.1.4.

Thay i hay xa thng tin OPI ca cc i tng:nu cc itng trong ti liu PDF c cha thng tin OPI (open prepressinterface) th n c thc sa i hay loi b trong EnfocusInspector.

- Dng cng cchn mEnfocus Inspector.- Chn mt i tng no trong ti liu mun thay i thng tin

OPI.- Chn Prepress/OPI.- thay i thng tin OPI, chn hp thoi File name, thc hin

nhng thay i v chn Change(V dnhmun thay i tn file


52/59

hay ng dn ca hnh nh). Mun xa thng tin OPI, chnRemove OPI information.

2.2.2. Dng Action list

- Trong hp thoi Action List vPDF Profile Panel, chn mc Imagetrong danh sch cc action, cc action chnh sa hnh nh c lit k

bn di.

- Mti liu cn chnh sa.- Chnh sa mt trong nhng vn sau:

iu chnh phn gii hnh nh: chn mc Resample for Printnhm:

Chn php ni suy v phn gii ph hp vi tng loi hnhnh (bitmap, grayscale, 1-bit).

Nhng nh c phn gii trn mt gi trno sc a

vphn gii do ta thit lp.

Xa b nhng hnh c phn gii thp (dng cho vic hin thnhanh)

Vo mc Manage/ NewmEnfocus Action List Editor.

Khai bo cc thng tin vtn Action sto, tn ngi to.

Chn Add mNew Action Type for Action List

Chn biu tng Image v Change

Bn khung bn phi hp thoi, chn action Remove AlternateImage v chn Add.

Trong hp thoi Enfocus Action List Editor, chn ty chnKeep default for printing.

Chn OK.

Chn Run.

Xa thuc tnh OPI:Thc hin nhbn bc mc trn.


53/59

Chn mc Remove OPI v chn Add.

Trong hp thoi Enfocus Action List Editor, chn OK.

Chn Run.

2.2.3.

Dng PDF profile

i vi cc li vphn gii hnh nh, chn cc ty chn sau:

- Hnh nh grayscale: Downsample image to 300dpi using bicubicdownsampling.

- Hnh nh 1-bit: Downsample image to 2400dpi using bicubicdownsampling.

- Hnh nh c nhiu file vi phn gii khc nhau: Remove alternateimage but keep default for printing.

i vi li vthuc tnh OPI, chn ty chn Remove OPI information.

I.

CHNH SA I TNG VECTOR

1.

nh ngha:- L nhng ng cong hay ng thng c qun l bng nhng php tnh ton

hc gi l i tng vector. Chng c xc nh v tr bng 2 trc ta X, Ytrong mt phng ta .

- Vic chnh sa i tng vector rt ddng, c thphng to thu nh ty mkhng phi lo lng n phn gii cng nhcht lng ca hnh nh.2. Cc khi nim.

- ng path: l mt thnh phn to nn mt i tng vector. C thc cc dng

sau: ng cong, ng gp khc, ng thng. Nhiu segment s to nn mtpath (c i khi mt path chc mt segment).


54/59

- im neo: l nhng im to nn nhng segment; c thl im u, im giahay im kt thc mt ng path.

- im hng: l nhng im iu chnh hng ca i tng, khi thay iim hng tc l thay i hnh dng ca i tng.

- Cc dng hnh khi: chn cng c Create new rectangle hay Create newellipse, xc nh vtr cn v. Mun vhnh chnht hay ellipse th r chut theong cho, mun v hnh vung hay hnh trn th nhn gi phm Shift v r,

mun vhnh ttm vra th nhn giphm Alt v r.

3.

Mt sthao tc trn i tng.3.1.

To mt ng path mi:

- Chn cng cCreate New Path(nu cn, mEnfocus Inspector).

- Mun vng cong: vng thng trc, sau dng cng cEditpath, vo Enfocus Inpsector, chn thCurve, chn vtr im cn curve,nhn chut v r.

ng path A gm 2 segment l B v C

Cc im neo A, B, C

Cc im hng gip iuchnh hnh dng ca hnh

A: vbnh thng.B: vttm


55/59

- Mun kt thc ng path: chn Esc hoc chn Close pathtrong EnfocusInspectorhoc click chn bt kcng ckhc.

3.2. Chnh sa ng path:

- Chn cng cEdit Path.

- Chn i tng mun chnh sa. Khi nhng im neo ca i tng s

uc hin th.

- Chn mt im neo bt k chnh sa (nu mun sa cng lc nhiuim th nhn phm shift v chn nhiu im hoc qut thnh mt vngchn cho nhng im cn chnh sa)

3.3. Thm v bt im neo:- Chn cng cAdd Anchor Pointthm im neo.

- Chn cng cRemove Anchor Pointbt im neo.

Thm im neo

Bt im neo


56/59

3.4. Chn i tng :c 2 cng cla chn l cng cchn i tng(select objects)v cng cchn nhng i tng c nhng c tnh tngng (select similar objects)

- Chn i tng:

Nu chn 1 i tng vecthay bitmap, nhng im neo sxuthin trn nn ca i tng, nu trc trong pitstopprofessional Preference chn ty chn Show center selection

handleth lc ny sthy c ng tm ca i tng. Nu chn text th di ng baseline ca text sxut hin mt

ng k mu xanh, trn c nhng im neo, nhng nhngim neo ny khng c dng thay i kch thc ch. Munchn cdng text, nhp i chut.

Nu chn mt i tng compound path, nhp i chut chnht i tng.

Nu chn i tng dng mask (bn che): nhp vo ng

baseline ca i tng c lm bn che chn n, nhp ra ngoi chn i tng dng lm bn che (i tng ny khng nhnthy nhng lp cha i tng ny vn cn bng chng l khi chnsthy xut hin vin hnh chnht mu xanh), qut vng chn chn ci tng lm bn che v i tng c che.

- Chn nhng i tng tng ng: cng cny cho php chn nhng itng trn cng mt trang c nhng thuc tnh ging nhau. Vic chnnhng thuc tnh ging nhau ny c thc hin trong Enfocus Inspector.

Chn cng cSelect similar objects.

MEnfocus Inpsector. Chn mt i tng lm mu trong trang ti liu (ch hay hnh

nh). Trong Enfocus Inspector, nu mun m rng phm vi chn, b

tick nhng mc khng cn thit. Sau , chn thanh Select SimilarObjects, ra ngoi nhp i chut li vo i tng c chnlm mu trc th tt cnhng i tng c cng thuc tnh vin sc chn.


57/59

3.5.

n v hin i tng c chn: khi phi lm vic vi nhiu i tngkhc nhau (ch, hnh vect, hnh bitmap) th vic hin thchng cng lci khi sgy kh khn cho vic chn chng (v chng nm chng ln lnnhau kh to sphn bit) nn chc nng ny sgip ddng hn trongvic chn tng i tng. Chxem wireframe skhng thy c itng khi chn lnh Hide selection.

- Dng cng cchn chn cc i tng.

- Vo Edit/Pitstop hide selection (n i tng) hoc Edit/Pitstop showall (hin i tng).

3.6.

Thay thmt i tng:pitstop cho php thay thi tng ny bng itng khc theo phng thc sao chp v dn. i tng mi sc dnln i tng cv i tng mi stng thay i kch thc vakht vi i tng c.

- Dng cng cchn chn i tng mi dng thay thcho i tng c.- Chn Edit/Copy.

-

Chn i tng cmun thay th.- Chn Edit/Replace.

A: sao chp i tng.B: chn i tng cn thay th.C: dn i tng mi ln i tngcv iu chnh kch thc cnglc.


58/59

3.7.Xoay i tng:theo 2 cch- Xoay bng tay:

Dng cng cchn chn i tng cn xoay. Chn cng cRotateselection. Khi i tng shin th tm xoay (c mc nh

bi mu , mun thay i vo Enfocus Inspector i mu trongmc cross hair color).

Xoay xung quanh tm hnh

Xoay ti gc: dng cng cRotate selection nhp i vo vtr cnlm tm

Xoay theo gc xc nh trc: va xoay va nhn giphm Shift.Vic ci t gc xoay ny c thc hin trong mc ConstrainAngleca Enfocus Inspector.

Xoay v copy: nhn gi phm Alt va xoay va to ra hnhcopy.

- Xoay bng hp thoi Enfocus Inspector:strnh by phn Bin i i

tng bng thng scth.3.8. Thu phng i tng:

- Thu phng bng tay:

Dng cng cchn chn i tng cn thu phng (c thko tovng chn xung quanh i tng).

Chn cng cScale selection.

Mun thu phng khng theo t l, chn cc im neo v thay ity thch.


59/59

Mun thay i tm thu phng, nhp i vo vtr chn lm tm vthu phng.

Mun thu phng theo tl, nhn giShiftkhi thc hin.

Mun va thu phng va sao chp, nhn giAltkhi thc hin.- Thu phng bng Enfocus Inspector: s trnh by phn Bin i i

tng bng thng scth.3.9.Di chuyn i tng:

- Di chuyn bng tay: Dng cng cchn chn i tng cn di chuyn (chn nhiu i

tng th giphm shift).

Chn cng cMove seclectionhoc giphm Ctrl di chuyn.

Mun di chuyn theo ng thng (ngang, dc), nhn gi phmShift.

Mun va di chuyn va sao chp, nhn giphm Alt.- Di chuyn bng Enfocus Inspector: s trnh by phn Bin i i

tng bng thng scth.

3.10.

Ko xin i tng:- Ko xin bng tay:

Dng cng cchn chn i tng mun ko xin (c thqut mtvng chn quanh i tng)

Documents

Tài liệu học photoshop