Adobe InDesign CS5 - Manual (Page 510)

504 USING INDESIGN
PDF
Last updated 11/16/2011
PDF/A-1b: 2005 (CMYK and RGB) (Acrobat only) Used for long-term preservation (archival) of electronic documents.
PDF/A-1b uses PDF 1.4 and converts all colors to either CMYK or RGB, depending on which standard you choose.
These PDFs can be opened in Acrobat and Reader versions 5.0 and later.
PDF/X-1a (2001 and 2003) PDF/X-1a requires all fonts to be embedded, the appropriate marks and bleeds to be
specified, and color to appear as CMYK, spot colors, or both. Compliant files must contain information describing the
printing condition for which they are prepared. PDF files created with PDF/X-1a compliance can be opened in Acrobat
4.0 and Acrobat Reader 4.0 and later.
PDF/X-1a uses PDF 1.3, downsamples color and grayscale images to 300 ppi and monochrome images to 1200 ppi,
embeds subsets of all fonts, creates untagged PDFs, and flattens transparency using the High Resolution setting.
Note: The PDF/X1-a:2003 and PDF/X-3 (2003) presets are placed on your computer during installation but are not
available until you move them from the Extras folder to the Settings folder.
PDF/X-3 This preset creates a PDF based on the ISO standard PDF/X-3:2002. The PDF created in this setting can be
opened in Acrobat 4.0 and Acrobat Reader 4.0 or later.
PDF/X-4 (2008) This preset creating ISO PDF/X-4:2008 files supports live transparency (transparency is not flattened)
and ICC color management. PDF files exported with this preset are in PDF 1.4 format. Images are downsampled and
compressed and fonts are embedded in the same manner as with the PDF/X-1a and PDF/X-3 settings. You can create
PDF/X-4:2008 compliant PDF files directly from Creative Suite 4 and 5 components including Illustrator, InDesign,
and Photoshop. Acrobat 9 Pro provides facilities to validate and preflight PDF files for PDF/X-4:2008 compliance as
well as convert non-PDF/X files to PDF/X-4:2008 if possible.
Adobe recommends PDF/X-4:2008 as the optimal PDF file format for reliable PDF print publishing workflows.
Press Quality Creates PDF files for high-quality print production (for example, for digital printing or for separations
to an imagesetter or platesetter), but does not create files that are PDF/X-compliant. In this case, the quality of the
content is the highest consideration. The objective is to maintain all the information in a PDF
file that a commercial
printer or print service provider needs in order to print the document correctly. This set of options uses PDF 1.4,
converts colors to CMYK, downsamples color and grayscale images to 300 ppi and monochrome images to 1200 ppi,
embeds subsets of all fonts, and preserves transparency (for file types capable of transparency).
These PDF files can be opened in Acrobat 5.0 and Acrobat Reader 5.0 and later.
Note: Before creating an Adobe PDF file to send to a commercial printer or print service provider, find out what the
output resolution and other settings should be, or ask for a .joboptions file with the recommended settings. You might
need to customize the Adobe PDF settings for a particular provider and then provide a .joboptions file of your own.
Rich Content PDF Creates accessible PDF files that include tags, hyperlinks, bookmarks, interactive elements, and
layers. This set of options uses PDF 1.5 and embeds subsets of all fonts. It also optimizes files for byte serving. These
PDF files can be opened in Acrobat 6.0 and Adobe Reader 6.0 and later. (The Rich Content PDF preset is in the Extras
folder.)
Note: This preset was called eBook in earlier versions of some applications.
Smallest File Size Creates PDF files for displaying on the web, an intranet, or for email distribution. This set of options
uses compression, downsampling, and a relatively low image resolution. It converts all colors to sRGB and embeds
fonts. It also optimizes files for byte serving. For best results, avoid using this preset if you intend to print the PDF file.
These PDF files can be opened in Acrobat 5.0 and Acrobat Reader 5.0 and later.
Standard (Acrobat only) Creates PDF files to be printed to desktop printers or digital copiers, published on a CD, or
sent to a client as a publishing proof. This set of options uses compression and downsampling to keep the file size
down, but also embeds subsets of all (allowed) fonts used in the file, converts all colors to sRGB, and prints to a medium