Issue

• The evince utility in Red Hat Enterprise Linux 5 may not be able to open PDF 1.6 documents. Evince may prompt for password even if the actual document is not password protected and may throw the following error:

  Error: Unsupported version/revision (4/4) of Standard security handler
  Error: Incorrect password
  

• CUPS may not be able to print PDF 1.6 documents on Red Hat Enterprise Linux 5.
  The CUPS error_log shows the following errors when the Log Level is set to debugging as described in How to enable and capture CUPS debugging logs

  D [03/May/2011:13:42:13 +1000] [Job 3909246] Error: PDF version 1.6 -- xpdf supports version 1.5 (continuing anyway)
  D [03/May/2011:13:42:13 +1000] [Job 3909246] Error: Unsupported version/revision (4/4) of Standard security handler
  D [03/May/2011:13:42:13 +1000] [Job 3909246] Error: Incorrect password
  D [03/May/2011:13:42:13 +1000] [Job 3909246] Error: Unable to print this document.