[Libreoffice-bugs] [Bug 141884] New: [Enhancement Request] Export file to PDF as image

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141884

            Bug ID: 141884
           Summary: [Enhancement Request] Export file to PDF as image
           Product: LibreOffice
           Version: 7.1.2.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: medium
         Component: Printing and PDF export
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: bugs_documentfoundation_org.5.kuru at xoxy.net

Description:
The default is that LibreOffice exports text to PDF files. The text can be
copied and inserted into other files.
This is exactly the step I suggest to make harder to hinder content beeing
copied to other files.

Steps to Reproduce:
/

Actual Results:
/

Expected Results:
/


Reproducible: Always


User Profile Reset: No



Additional Info:
Right now when a file (eg. in writer) is exported to PDF, the text is exported
as text. That makes copying the text rather trivial.
Also copying images is a piece of cake.

My suggestion is to make the copy&paste step harder or maybe even as hard as
possible (depending on how far you want to go).

Harder:
I'm not sure if this is the best way, but I would suggest an option that
exports the full (eg. writer) page as image and said image is used in the PDF
file to cover the entire page. So you actually take a screenshot of the page
and include the screenshot rather than the actual text.

Hard as possible:
To make work harder for OCR software some kind of random noise pattern (wavy
lines, dots, etc.) could be added to the background that don't hinder reading
that much, but would maybe throw off OCR software a bit. Of course this would
only work up to a certain point without hindering human readability that much.

Why do we need that:
I'm sure LibreOffice is used in many cases where the author wants a bit more
control over how easy the information in the file can be copied. Maybe the
author has written some instruction paper that he wants to sell and wants to
make sure that the instructions can not be copy&pasted to some forum that
easily.
For my part the 'a bit more control over how easy the information in the file
can be copied' is exactly what I would like to see.

Personally I would be fine with the 'Harder' step, since it's a clear step up
and I'm not sure if there is a real need for the step 'Hard as possible'.
Moreover the further you decrease readability for OCR software, the harder it
will be to read the same text for humans as well.

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