Tips for Obtaining PDF/A-1b ComplianceOriginally complied by
- Acrobat Professional (version 9.0+) is available in the library’s e‐Classroom or Library Media Lab or GEB Lab. The most current version is
you install Adobe Acrobat 9.0 on your personal computer, make sure to
install the PDF Printer (Adobe Acrobat Printer - Windows versions). Note:
the latest version of Word for Mac (2011) does not use an Acrobat
Printer selection in the same way that the Adobe Acrobat Windows version
does. Instead for the Mac, there is a PDF pull-down menu button in the
lower left of your printer dialog window. You would want to select the
Save as Adobe option and change the conversion option in the subsequent
window to PDF/A-1b. This utility in the Mac will automatically embed
annotations by the format reviewers (usually a transparent yellow
highlight) must be removed prior to attempting a conversion to PDF/A-1b
must be in RGB format, not CMYK. Most graphic software will allow you
to save your graphics in either format; use RGB or sRGB.
- Resize images to 100% final output size and use 300 dpi (dots‐per‐inch) for images.
need to be compressed using ZIP compression, not LZW compression.
Photoshop or similar programs give you a choice. Use tiff or jpg image
formats. Gif format can be used but is generally poor quality.
must be flattened and saved as RGB. Multiple layers in images will
cause transparency errors. Programs such as Adobe Photoshop and Elements
allow you to flatten image layers. When exporting graphics from Adobe
Illustrator or Freehand flatten all transparencies before exporting.
you copied and pasted a URL into your document (e.g., from PubMed), you
will need to delete it and retype it, or remove the formatting before
pasting by converting to ascii or plain text. Copying and pasting
includes underlying HTML that will not allow PDF/A-1b compliance.
- Consistently use the same computer platform (Mac or PC) and the same computer if possible.
you used a nonstandard font (e.g., Wingdings), it will not be embedded
and will not allow compliance. For Greek and other similar scientific
notation, use the Insert menu in Word for special characters.
the PDF/A 1b profile under settings or properties to force embedded
fonts. Even the recommended fonts can create problems. If you are
getting a noncompliance error message because of fonts, try changing the
font to another recommended font.
- Internal PDF security of any kind is not allowed.
If you do not seem to be able to resolve your problem with PDF/A-1b compliance, call or email...