PDF/A conformance level as specified in the PDF/A-1 ISO specification.
The conformance level refers to how a PDF document adheres to requirements that specify how
long-term electronic documents are preserved.
For information about level A and B conformance, see
the PDF/A-1 ISO specification that is titled ISO 19005-1 Document management.
To see this enumeration value used in a code example, see the
Creating a PDF/A document using the Java API quick start in Programming with Adobe Experience Manager forms.