Converting a file to PDF/A compliant version
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents.
PDF/A validation is done here: pdf-online.com
We recommend to use PDF-XChange printing. Choose PDF/A format and PDF/A-2b.
If your pdf is in right format, result should look like this:
Result Document validated successfully.