[
https://issues.apache.org/jira/browse/PDFBOX-1468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Juraj Lonc updated PDFBOX-1468:
-------------------------------
Description:
I have received encrypted PDF which contains several string objects but not all
of them are encrypted.
I am not sure whether it is or it is not compliant with pdf reference.
But I have created fix so pdfbox can handle this.
If string contains only chars between 32-127 then decryption is not necessary
(I know, this is not true in 100% of cases but I think it is swallowable)
Some strings are encrypted:
/CreationDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
/ModDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
/Producer(\241\350\210\035\001\352\224\3219\(0\247\006\333\2537\225\334\300\232\265)
Some are not:
/Registry(Adobe)
/Ordering(Identity)
was:
I have received encrypted PDF which contains several string objects but not all
of them are encrypted.
I am not sure whether it is or it is not compliant with pdf reference.
But I have created fix so pdfbox can handle this.
If string contains only chars between 32-127 then decryption is not necessary
(I know, this is not true in 100% of cases but I think it is swallowable)
Some string are encrypted:
/CreationDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
/ModDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
/Producer(\241\350\210\035\001\352\224\3219\(0\247\006\333\2537\225\334\300\232\265)
Some are not:
/Registry(Adobe)
/Ordering(Identity)
> Decrypting unencrypted strings
> ------------------------------
>
> Key: PDFBOX-1468
> URL: https://issues.apache.org/jira/browse/PDFBOX-1468
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel
> Affects Versions: 1.7.1
> Reporter: Juraj Lonc
> Attachments: PDFBOX-1468.diff, Protokol o kontrole originality -
> Drabikova.pdf
>
>
> I have received encrypted PDF which contains several string objects but not
> all of them are encrypted.
> I am not sure whether it is or it is not compliant with pdf reference.
> But I have created fix so pdfbox can handle this.
> If string contains only chars between 32-127 then decryption is not necessary
> (I know, this is not true in 100% of cases but I think it is swallowable)
> Some strings are encrypted:
> /CreationDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
> /ModDate(\222\202\376k\003\372\306\236\(IP\327C\215\375k\357)
> /Producer(\241\350\210\035\001\352\224\3219\(0\247\006\333\2537\225\334\300\232\265)
> Some are not:
> /Registry(Adobe)
> /Ordering(Identity)
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