Implementing PDF/X-4

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PDF/X-4 and transparencies •final color in output is not necessary the objects color in the PDF −Example: 50% gray in on plate can be defined as 100% Black having 50% transparency or a 50% transparent white object over a Black object •color conversion to same visual appearance might lead to different visual appearance when using transparency −typical usage:”ink saving” •a PDF/X-4 file represents a “digital master” which should not be modified
Trapping •trapping is only possible in output color space (CMYK/Spot) •object oriented trapping works only partly −between CMYK/Spot colored objects −latest updates introduced “trapping exceptions” −object oriented trapping solutions do not trap objects with applied transparency or color space not CMYK/Spot (mostly) •trapping is being moved to Renderer −same technology as PostScript InRip Trapping based on color density
Page 1 and 2: PDF/X-4 from Creation to Output Pet
Page 3 and 4: native PDF/X-4 Workflow Image and a
Page 5 and 6: Transparency -the major force to mo
Page 7 and 8: classical usage image clipping
Page 9 and 10: why keep transparency in PDF? −ab
Page 11 and 12: further PDF/X-4 aspects •support
Page 13 and 14: OCMDs (in Acrobat X)
Page 15 and 16: OCCDs (in Acrobat X)
Page 17 and 18: Filesize/Quality comparison •Orig
Page 19 and 20: PDF/X-4 and color •all icc based
Page 21 and 22: PDF/X-4 creation
Page 23 and 24: PDF/X-4 (CMYK) creation Image and a
Page 25: PDF/X-4 processing •trapping •d
Page 29 and 30: “reuse of” PDF/X-4 in layout ap
Page 31 and 32: native PDF/X-4 Workflow PDF/X-4 Des
Page 33: What if output device does not hand
Page 36 and 37: simplified transparency blending in
Page 38 and 39: simplified transparency blending in
Page 40: Thank you Peter Kleinheider peter@i

Implementing PDF/X-4

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