Hi Tilman,
> It isn't supported.
;-(
1) use keylength 256 => AES256 will be used
it works.
But I get a warning.
Feb 19, 2016 10:31:15 AM
org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler validatePerms
WARNUNG: Verification of permissions failed (-60 != -1852)
As a side effect my old Adobe Reader filed under Linux, that he is too
old. Since I have no Windows here, I then installed the Adobe Reader
under Wine. This makes it possible to open the PDF.
On this occasion I would like to see if you used as Owner password null
(new StandardProtectionPolicy(null, null, ap)), a PW is randomly
generated (as it does for example iText).
by
Michael
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