Check (and convert) your PDF file with Adobe Acrobat Pro DC (Windows 10)
With Acrobat Pro, you can check whether your PDF file is PDF/A compliant and / or transform it into a valid PDF/A file.
Note: Adobe Acrobat Pro DC is installed on all university workstations. Students can download this software for a reasonable price for their personal computers via Adobe Creative Cloud (test version available).
Download instructions [PDF]
Check your PDF file with verapdf (beta)
This is an online PDF validator where you can validate your PDF file: demo.verapdf.org/