[Libreoffice-bugs] [Bug 121133] Adobe Reader DC claims that the PDF has been modified after signing

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=121133

--- Comment #22 from Michal Bozon <michal.bozon at protonmail.com> ---
.. I currently do not have resource to inspect and build LibreOffice source,
but I've made potentially interesting observation when inspecting/manipulating
the resulting PDF file.

When the last (4th) PDF signature /ByteRange [ ... ] component (i.e. 2nd
offset) is increased by 1, the signature is of course verified as incorrect,
but the "1 Page(s) Modified" no longer appears (it is not the case if the value
is decreased by 1).

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