Faculty of Social Sciences, University of Ottawa
Ten Common PDF accessibility errors with solutions
Sometimes when checking with PAC 2.0, you may come across some errors that Adobe Acrobat
will not find. Some of these errors are due to compliance with PDF/USAm. e of the errors as
identified in the Adobe Forum online and their solutions are as follows:
126.96.36.199 PDF/UA identifier missing
Sometimes, some documents can pass the Adobe Acrobat checker as well as PAC1.3 but could have
an error that says PDF/UA identifier missing. To fix this error, create an xmp file that includes the
required snippet of metadata or simply download one then do the following once the document is
• Go to the file menu and select Properties.
• In the description tab, click on Additional Metadata
• Click on Advanced and then on Append
• Select the XMP file then click OK.
188.8.131.52 Font not embedded
When you get this error, in order to fix the following:
• Go to Tools and select Print Production
• Select Preflight and then PDF fixups
• Select Embed fonts, Click on Analyze and fix. It may be that the PDF will have to be saved
again. Save it.
In the event that this fix does not work because the fonts cannot be embedded, go back to the
original document from which the PDF was created and then use a different font.
184.108.40.206 Alternative description missing for an annotation
This usually happens when the link is not clear enough. To fix this error, add alternative text to the
link tags. In order to add the alternative text, please do the following;
• In the tag tree, select the <link> tag for the link, and select Properties from the options menu.
• In the TouchUp Properties dialog box, select the Tag Tab.
• Type alternate text for the link, and click close.
Version 1.1- 17 September 2014