Immediately check one or one hundred PDF files for signs of inaccessibility

Files are only loaded locally and are not transmitted anywhere.

PDFcheck checks


This check indicates that tags are present in the document. If no tags are present, the file is absolutely not accessible. This check doesn't determine if existing tags are correct.

Possible tagged values:

Tagged Yes (# tags)

Tagged No


All documents should have the language attribute set. Correct values for English documents are (en) or (en-US).

To set the language in Acrobat Pro DC, go to: File → Properties → Advanced tab → Reading Options → Language drop down

Possible language values:

Language (Language abbreviation)

Language Not set

Document Title

A conformant PDF will have a readable title specified in File → Properties.

Possible document title values:

Document Title Document title

Document Title Empty

Document Title Not set