In PDFBOX-2801 and PDFBOX-2469
<https://issues.apache.org/jira/browse/PDFBOX-2469> code has been
inserted that the signature dictionary not be decrypted. What is the
reason this is done, where can this be found in the specification? I
didn't find it.
When looking at the file from PDFBOX-2711, I can't see the signature
details because these are encrypted.
See here:
Root/Pages/Kids/[0]/Annots/[0]/T
Root/Pages/Kids/[0]/Annots/[0]/V/Location
Root/Pages/Kids/[0]/Annots/[0]/V/
Root/Pages/Kids/[0]/Annots/[0]/V/Name
Root/Pages/Kids/[0]/Annots/[0]/V/Reason
these elements can be displayed if this line in
SecurityHandler.decryptDictionary
if (!COSName.SIG.equals(dictionary.getItem(COSName.TYPE)) &&
!COSName.SIG.equals(dictionary.getItem(COSName.FT)))
is removed.
Why these thoughts? I was looking at the file Scan0001_protected_signed
in PDFBOX-2729 and was wondering why this worked at all.
Tilman
