Level A (accessible) conformance (PDF/A)
Level B (basic) conformance (PDF/A)
Level G (external graphical content) (PDF/X)
Level N (external ICC Profile) (PDF/X)
No conformance level available
Level P (ICC Profile) (PDF/X)
Level PG (conjunction of P and G) (PDF/X)
Level U (Unicode) conformance (PDF/A)
Null
PDF Subtype Conformance