PDF Standard Tools
The PDF Standard tools make input documents compliant with alternative PDF standards:
Convert to PDF/A makes documents compliant with the PDF/A standard, which is used for long-term archiving.
Convert to PDF/X makes documents compliant with the PDF/X standard, which is used to exchange printing data.
Discard Special PDF-Standard discards special PDF standard information from documents such as PDF/X, PDF/A and PDF/E information.