Technical Note 0003: Metadata in PDF/A-1

PDF/A-1 imposes certain requirements and restrictions on document metadata in a compliant PDF/A-1 file where certain information is required to be encoded as XMP metadata, while corresponding entries in the document information dictionary for a document may be present but must match information present in the document’s XMP-encoded metadata.

This Technical Note explains several aspects to be aware of when determining appropriate use of metadata for PDF/A-1 files.