This product supports PDF versions 1.0 to 1.7; this topic summarizes which features are supported in each version. Features not mentioned here are supported in all versions. PDF files created by the product can be from versions 1.3 to 1.7 or PDF/A (based on version 1.4).
40-bit RC4 – Supported in PDF version 1.1 and above (security revision 2)
128-bit RC4 - Supported in PDF version 1.4 and above (security revision 3)
128-bit AES – Supported in PDF version 1.6 and above (security revision 3)
256-bit AES – Supported in PDF version 1.7 and above (security revision 3)
The available set of document permissions depend on the security revision number (defined in the PDF standard). Two security revisions are used: 2 and 3.
Security revision 2 (RC4-40 encryption) allows the document creator to restrict the following operations:
Modifying the document contents
Copying text and graphics from the document
Adding or modifying text annotations and interactive form fields
Printing the document
Security revision 3 (RC4-128, RC4-128 or RC-256 encryption) adds the following operations to the repertoire the document creator can control:
Form fill-in and sign document
Text inspection for accessibility
Document assembly including insertion, deletion of pages and creation of bookmarks and thumbnails
Allow only printing that does not allow perfect digital copies, but which may also result in degradation of output quality
Metadata fields are supported in PDF version 1.1 and above.
PDF/A : Supported in PDF version 1.4 only
Linearized PDF: PDF version 1.2 and above
PDF/A and Linearized PDF are mutually exclusive options. Also, if the PDF/A option is turned on, all controls in the Password Security panel are disabled
TIFF G4 - PDF 1.0 to 1.3
JBIG2 – PDF 1.4
JPEG2000 - PDF 1.5 and above
MRC compression is supported in PDF 1.3 and above, for image-only PDF files