{drm} stands for Digital Rights Management.

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13
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2answers
1k views

Is possible to add an unnoticeable “signature” to a PDF in order to track its copies? [duplicate]

Suppose I want to generate 100 apparently identical PDF files, where I hide some kind of key, in order to distribute them among 100 different people. Now I detect an online shared copy of the document ...
3
votes
1answer
111 views

Printing user name at PDF and other stuff

I'm finishing a pdf book and I'm gonna sell it. Trying to avoid keep it downloadable to anyone, I'd like to print in every single page the name of the person who bought it, like this: How can I do ...
0
votes
0answers
116 views

PDF with an expiration date through Latex

Is it possible to get PDF file with an expiration date through Latex? I mean a PDF displayable only for a particular period of time and then if you try to open it you get only a message like "Sorry ...
2
votes
0answers
39 views

How to enable security in LaTeX using pdflatex 1.40.14 [duplicate]

I want to disable copy/write/edit ... option in my .pdf document. I don't want the document to be password protected ... I am using LaTeX to produce the document. Here is the shapshot of the ...
1
vote
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 ...
4
votes
0answers
102 views

Using LaTeX, can we prevent others from editing pdf file properties? [duplicate]

After opening a .pdf file with Adobe Acrobat, go through menu File->Properties->Description tab, we can see the fields such as Author, Subject, Title, Keywords etc. If the .pdf file is created with ...
1
vote
0answers
42 views

How to mark and secure a PDF document for distribution? [duplicate]

This might not be a 100% LaTeX question since it is a matter of PDFs, but I think that the LaTeX crowd is the most appropriate audience for it. I have an unpublished research paper that I am writing ...
1
vote
1answer
285 views

Insert pages from password protected pdf file in latex

If I have a password protected PDF (my own document, source unfortunately lost), and I want to include a portion of it in a new document, can that be done? This previous question explains how to do ...
3
votes
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?
2
votes
2answers
1k views

Protect scanned signature in a PDF [closed]

I would like to include a scanned signature in my PDF and send it via email. Call me a tin-foil hat but I know how easy it is to open a PDF using, say, inkscape and extract the signature graphics from ...
1
vote
0answers
65 views

Secure the pdf produced by Latex [duplicate]

Possible Duplicate: How to set security options to create PDF using pdflatex I was wondering if there are any provisions for securing the pdf generated by Latex? I mean secure it from ...
4
votes
3answers
411 views

Censor images and tables

My publication requires a public and non-public version. I have several figures and tables that I'd like to censor by placing a big colored block on top of it. One page suggested using \colorbox. ...
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 ...
7
votes
2answers
400 views

How to add random lines over text as a watermark and anti-OCR?

I would like to add a sort of a watermark to a PDF file produced using LaTeX. I have in mind graphical elements (lines, circles, etc.) that would partially obscure the text on the page. The ...
18
votes
1answer
6k views

How to set security options to create PDF using pdflatex

My questions is very simple. How can I set security setting for a PDF file created with PDFLatex? I should set some password or print permissions, etc.
12
votes
2answers
1k views

Is it possible to embed (attach) a file password protected in a PDF?

The situation is the following, for certain short latex files, I embed the source in the PDF it self. That can save me time in an emergency if I need to modify the source of a PDF without having to ...
10
votes
1answer
877 views

Is there a package to secure rendered pdf with a password?

Is there a package and command that can secure rendered pdf with a password?
6
votes
1answer
921 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} ...
58
votes
6answers
5k views

How to add an invisible watermark to pdf documents?

I'd like to add an invisible watermark to each PDF document that I produce so that in case it leaks, I know where it leaked from. Anyone knows what would a good way for an invisible watermark be in a ...
12
votes
1answer
6k views

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 ...
40
votes
7answers
15k 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.