Fix/invalid xref #1696
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Fix/invalid xref #1696
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Based on PhakornKiong/pdf-lib#dev/DocEncrypt
Affected encrypted PDFs
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What?
This PR is to address issue in cantoo-scribe#64
It is found that there is no problem with the pdf document, but the xref section is corrupted.
Why?
Our team use this library and found this issue when we upload pdf with invalid xref. Turns out this issue raised before
How?
It will precheck if the digits in xref object is valid, if it is not valid, it will just return the empty xref
Testing?
Ran the test locally
New Dependencies?
Screenshots
Suggested Reading?
Anything Else?
Checklist