Operation Manual

70
USING ACROBAT X STANDARD
Creating PDFs
Last updated 10/11/2011
PDF/A-1b: 2005 (CMYK and RGB) 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.
Press Quality Creates PDF files for high-quality print production (for example, for digital printing or for color
separations to an imagesetter or platesetter). However, it 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 requires to print the document correctly. This set of options uses
PDF 1.4, converts colors to CMYK, and downsamples color and grayscale images to 300 ppi and monochrome images
to 1200 ppi. It 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 a PDF file to send to a commercial printer or print service provider, find out what output resolution
and other settings are required. Or, ask for a .joboptions file with the recommended settings. You sometimes must
customize the Adobe PDF settings for a particular provider and then provide a .joboptions file of your own.
Smallest File Size Creates PDF files for displaying on the web or an intranet, or for distribution through an email
system. This set of options uses compression, downsampling, and a relatively low image resolution. It converts all
colors to sRGB, and (for Adobe Acrobat Distiller-based conversions) does not embed fonts. It also optimizes files for
byte serving.
These PDF files can be opened in Acrobat and Reader 6.0 and later.
Standard 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. However, it
also embeds subsets of all (allowed) fonts used in the file, converts all colors to sRGB, and prints to a medium
resolution. Windows font subsets are not embedded by default. PDF files created with this settings file can be opened
in Acrobat and Reader 6.0 and later.
About PDF/X, PDF/E, and PDF/A standards
PDF/X, PDF/E, and PDF/A standards are defined by the International Organization for Standardization (ISO). PDF/X
standards apply to graphic content exchange; PDF/E standards apply to the interactive exchange of engineering
documents; PDF/A standards apply to long-term archiving of electronic documents. During PDF conversion, the file
that is being processed is checked against the specified standard. If the PDF does not meet the selected ISO standard,
you are prompted to either cancel the conversion or create a non-compliant file.
The most widely used standards for a print publishing workflow are several PDF/X formats: PDF/X-1a, PDF/X-3, and
(in 2008) PDF/X-4. The most widely used standards for PDF archiving are PDF/A-1a and PDF/A-1b (for less stringent
requirements). Currently, the only version of PDF/E is PDF/E-1.
For more information on PDF/X, PDF/E, and PDF/A, see the ISO and AIIM websites.
For details on creating and working with PDF/A files, see www.adobe.com/go/learn_acr_pdfa_en.
Customize Adobe PDF settings
You may want to create custom conversion settings for certain jobs or output devices. The selections you make
determine such things as whether the document fonts are embedded and subsetted at 100%, how vector objects and
images are compressed and/or sampled, and whether the resulting PDF includes high-end printing information such
as OPI (Open Prepress Interface) comments. Default settings files cannot be modified, but can be duplicated to help
create new settings files.