Jay Berkenbilt e57c25814e Support for encryption with /V=5 and /R=5 and /R=6 ...

Read and write support is implemented for /V=5 with /R=5 as well as
/R=6.  /R=5 is the deprecated encryption method used by Acrobat IX.
/R=6 is the encryption method used by PDF 2.0 from ISO 32000-2.

2012-12-31 10:32:32 -05:00

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qpdf

Support for encryption with /V=5 and /R=5 and /R=6

2012-12-31 10:32:32 -05:00