PDF files generated with Apache FOP will contain !CreationDate and !ModDate set to the current date and time. The PDF ID also seems to be generated using the current time.

[[https://reproducible.debian.net/issues/timestamps_in_pdf_generated_by_apache_fop_issue.html|Known affected packages]]

= Detection =

The PDF contains a string similar to `/Producer (Apache FOP Version 1.1)`.

= Work-around =

None yet (FOP hangs when run using DebianPts:faketime).

= Solution =

None yet.