After a long waited time, I’m back with another freaking tips related to Linux. As I have Ubuntu 9.10 (Karmic Koala) installed in my machine, I will be teaching the method for Ubuntu only. However, the similiar syntax can help in other version of Linux OSes.
First of all we are going to need a locked(copy protected) pdf for this. If you are reading this article means you already have it. We will also be needing two pdf tools called pstopdf and pdftops.
To install these tools, open your terminal and insert in th command
sudo apt-get install context
After the packages have been successfully installed try these two commands and you are done.
pdftops protected.pdf out.ps
pstopdf out.ps out.pdf
The out.pdf will be your unprotected PDF.
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simply great…