20 Replies Latest reply: Jun 14, 2012 5:20 PM by hariharan1986 RSS

    What are the permitted compression techniques for PDF/A-1?

    hariharan1986 Community Member

      The PDF/A-1 standard does not specify how compression is performed. What are the permitted compression techniques for PDF/A-1?

       

      The information I have gathered (not sure if all are true)

       

      1. LZW should not be used
      2. JPEG2000 may not be used
      3. Few say, JPEG can be used but its a lossy compression. (PDF standard clearly states lossy compression can't be used)

       

       

      Also, how to figure out whether a particular file is PDF/A-1a or PDF/A-1b and what kind of compressions are used in that file?

       

       

      Thanks in advance.