An Overview of PDF/X. Dov Isaacs Principal Scientist, Workflow & Interoperability Chair, ISO TC130 WG2/TF2, PDF/X April 27, 2011

Transcription

1 An Overview of PDF/X Dov Iscs Principl Scientist, Workflow & Interoperbility Chir, ISO TC130 WG2/TF2, PDF/X April 27, 2011

2 PDF s n Adobe File Formt 1993 to 2008 PDF formt introduced by Adobe with Acrobt 1 in 1993 Immedite specifiction publiction No license required from Adobe to generte or consume PDF files vi third prty softwre Rpid growth of PDF ecosystem Adobe responsible for ll dditions nd updtes to the specifiction bsed on Needs of Adobe s Acrobt, grphics rts, nd enterprise products Industry & end user feedbck PDF subset specifictions bsed upon Adobe PDF 7.0Professionl Adobe Acrobt 2

3 PDF s n ISO Stndrd ISO PDF Published by ISO TC 171 in 2008 Bse is Adobe PDF 1.7 Provides mechnisms for vendor extensions to PDF Implemented in Acrobt 9 nd Acrobt X nd some third prty products Serves s the bsis for some new ISO PDF subset stndrds ISO PDF Currently under development by ISO TC 171 Expected pprovl nd publiction in 2012 s PDF 2.0 Fetures include: Forml support for extensions lredy being incorported into PDF/UA nd PDF/VT stndrds Color improvements Spot color enhncements Per-pge output intents Overprint hndling Blck point compenstion Flsh / SWF integrtion Reder requirements 3

4 PDF Subset Stndrds PDF specifiction is very complex PDF hs immense rry of fetures & options ccommodting the legcy of PostScript in ddition to new functionlity PDF ws not designed primrily for printing PDF ws designed by engineers Fer of use of the full PDF specifiction for specific purposes How do you print n embedded movie? Annottions? Form fields? Jvscript? Blind exchnge nd rchiving? Wht is sfe? Stkeholders move to define tsk pproprite PDF subsets 4

5 b Wht is PDF/X? PDF/X is fmily of grphic technology stndrds tht stndrdize the used of the PDF for exchnge of print-redy mteril Identifies subset of PDF objects tht my be used with restrictions to the use, or form of use, of those objects nd/or keys within those objects Gol if sender nd receiver of dt file use pplictions tht conform to the sme PDF/X specifiction, then the received file will print exctly s the sender intended no surprises! PDF/X developed jointly by ANSI CGATS (Committee for Grphic Arts Technologies Stndrds) nd ISO/TC 130 PDF/X Extrcted from ISO Bulletin, Jnury

6 PDF/X Stndrds PDF/X-1:2001 Complete exchnge of CMYK & spot color dt bsed on PDF 1.3 (i.e., no live trnsprency) blind exchnge Provides for either embedding of output intent ICC profile or nming n output condition Supported by Adobe CS pplictions, Adobe Acrobt, nd virtully ll professionl PDF workflow nd prepress softwre; not supported by PDFMker Very relible when the genertor of the PDF file knows the exct finl printing conditions My be very problemtic in mny 21st century print workflows: Originl content uses live trnsprency The genertor of the PDF file does not know the exct finl printing conditions The print service provider needs the bility to retrget the PDF file for differing print conditions Considered to be the de fcto professionl PDF printing stndrd 6

7 PDF/X Stndrds PDF/X-1:2003 Updted version of PDF/X-1:2001 bsed on PDF 1.4 but without ny support for live trnsprency Supported by Adobe CS pplictions nd Acrobt; not supported by PDFMker Hs the sme bsic issues nd limittions s PDF/X-1:2001 Virtully ignored by the professionl printing community PDF/X-2 Exchnge of CMYK, spot color, nd color-mnged dt with support for externl content vi Reference XObjects bsed on PDF 1.4 but without ny support for live trnsprency not blind exchnge No known ppliction or RIP support Officilly bndoned by ISO in October

8 PDF/X Stndrds PDF/X-3:2002 Complete exchnge of CMYK, spot color, nd color-mnged dt bsed on PDF 1.3 (i.e., no live trnsprency) blind exchnge Provides for either embedding of output intent ICC profile or nming n output condition Supported by Adobe CS pplictions, Adobe Acrobt, nd most professionl PDF workflow nd prepress softwre; not supported by PDFMker Hs the sme bsic issues nd limittions s PDF/X-1:2001 lthough more retrgetble Utilized to some degree in Europe, but virtully no trction elsewhere in the world PDF/X-3:2003 Updted version of PDF/X-3:2002 bsed on PDF 1.4 but without ny support for live trnsprency Supported by Adobe CS pplictions nd Acrobt; not supported by PDFMker Virtully ignored by the professionl printing community 8

9 PDF/X Stndrds PDF/X-4:2008 Complete exchnge (blind exchnge) of CMYK, spot color, nd color-mnged dt bsed on PDF 1.6 dding support for Live trnsprency Improved compression: JPEG2000 nd compressed XRefs & Strems PDF lyers (with restrictions) Requires the embedding of n output intent ICC profile Supported by Adobe CS4 & CS5, Adobe Acrobt 9 & X, RIPs / printers using the Adobe PDF Print Engine, nd some professionl PDF workflow nd prepress softwre; not supported by PDFMker The next genertion de fcto professionl PDF printing stndrd PDF/X-4:2008p Sme technicl requirements s PDF/X-4:2008 except tht URL is used to point to the output intent ICC profile Supported by Acrobt 9 & X, RIPs nd printers using the Adobe PDF Print Engine, nd some professionl PDF workflow nd prepress softwre; not supported by PDFMker PDF/X-4:2010 & PDF/X-4p:2010 Eses restrictions on use of PDF lyers for nd officilly replces PDF/X-4:2008 & PDF/X-4p:2008 Supported by Acrobt X, RIPs nd printers using the Adobe PDF Print Engine, InDesign 7.5 PDF export, nd some professionl PDF workflow nd prepress softwre; not supported by PDFMker 9

10 PDF/X Stndrds PDF/X-5:2008 PDF/X-4:2008 with support for dditionl fetures vi three conformnce levels PDF/X-5n:2008 n-color output is supported vi URL is used to point to n n-color output intent ICC profile No known current support PDF/X-5g:2008 Externl grphics vi use of Reference XObjects Necessry for PDF/VT-2 support Supported by Acrobt 9 & X, RIPs nd printers using the Adobe PDF Print Engine, nd some professionl PDF workflow nd prepress softwre; not supported by PDFMker PDF/X-5pg:2008 Externl grphics vi use of Reference XObjects nd URL is used to point to the output intent ICC profile Supported by Acrobt 9 & X, RIPs nd printers using the Adobe PDF Print Engine, nd some professionl PDF workflow nd prepress softwre; not supported by PDFMker PDF/X-5:2010 Eses restrictions on use of PDF lyers for nd officilly replces ll three conformnce levels of PDF/X-5:2010 Similr support s PDF/X-5:

11 PDF/X Version Comprison PostScript (2 & 3) PDF/X-1 : 2001 PDF/X-3 : 2002 PDF/X-4 & PDF/X-4p PDF/X-5 Bsed on PDF version N/A 1.3 Acrobt Acrobt Acrobt Acrobt 7 Color Support Color Mngement Device & Color- Mnged CMYK, Gry, & RGB; Spot PostScript CIE-bsed Color Mngement Device CMYK & Gry; Spot ICC Color Mngement (Output Profile/Condition) Device CMYK & Gry; Spot; Color-Mnged CMYK, Gry, & RGB ICC Color Mngement Device CMYK & Gry, Spot; Color-Mnged CMYK, Gry, & RGB ICC Color Mngement (Externl output profile for PDF/X-4p) Live Trnsprency NO Appliction flttened NO Appliction flttened NO Appliction flttened YES YES Lyer Support NO NO NO YES YES Pge Independence & Rndom Access NO YES YES YES YES Blind Exchnge NO YES YES YES (PDF/X-4 only) NO Print Job Control Imge & Object Optimiztion Normlly Internl vi /setpgedevice Externl (Possibly vi JDF) Externl (Possibly vi JDF) Externl (Possibly vi JDF) Device CMYK & Gry, Spot; Color-Mnged CMYK, Gry, & RGB ICC Color Mngement (Externl output profile for PDF/X-5pg; n-colornt externl profile for PDF/X-5n) Externl (Possibly vi JDF) NO Avilble Avilble Avilble Avilble (PDF/X-5g & PDF/X-5pg support Reference XObjects) Typicl File Size Lrge Compct Compct Compct Compct Norml Overll Chrcteriztion Highly Device-Dependent Device-Dependent Device-Dependent (due to flttened trnsprency) Device-Independent Device-Independent 11

12 Future PDF/X Stndrds Work Bsed on ISO PDF stndrd s opposed to older Adobe PDF stndrds Enhncements for Pckging Support for multiple output intents for different document prts (exmple: cover versus inside pges) Accommodtion of both optimized printing nd disply intents Office document color support Commonlity with PDF/A, PDF/UA, nd PDF/E Document security; encryption Others? Next PDF/X stndrds very unlikely prior to rtifiction nd publiction of ISO in lte 2012 or 2013 We re very open for ides to updte PDF/X consistent with its bsic missions ssocited with PDF rendering for print! 12

13 Q & A 13

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