1
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0answers
35 views

obfuscate latex->pdf document [duplicate]

Is there any package that can easily allow you to obfuscate a Latex->PDF generated document such that copy-paste is not longer possible and produces random letters for instance. And if yes, is it ...
3
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0answers
89 views

It is possible to lock up pdf? [duplicate]

I'm searching if it is possible to set permissions in LaTeX code to prevent copy/print/make changes of pdf? And if it is possible to encrypt pdf in LaTeX code?
11
votes
2answers
1k views

What can cause generated PDF document whose text are not correctly copyable?

I was wondering why some PDF documents compiled from some LaTeX code does not make its text correctly copyable, i.e. what you can get is nonsense text? For example, this pdf document (I don't have the ...
5
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1answer
909 views

PDF with un-copyable text in LuaLaTeX

In Is it possible to produce a PDF with un-copyable text?, it was suggested the following code to disable the coyable text from a pdf viewer. % pdflatex is required \documentclass{article} ...
12
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1answer
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Protect text in PDF from being copied [duplicate]

Possible Duplicate: PDF with un-copyable text What is the most effective ways to protect text in a PDF from being copied with Ctrl+C? I know about standard PDF copy protection, and also ...
38
votes
7answers
14k views

Is it possible to produce a PDF with un-copyable text?

Is it possible to produce a PDF with un-copyable text? I mean, when you want to copy text from the PDF, you can't copy it or what you copy is nonsense characters.