To install qpdf just follow these instructions.
sudo apt-get install qpdf
Which will install qpdf and any other packages on which it depends.
|Maintainer||Jay Berkenbilt <[email protected]>|
|Description||tools for transforming and inspecting PDF files encrypt (password-protect), decrypt, and inspect PDF files from the command-line. It does these and other structural, content-preserving transformations on PDF files, reading a PDF file as input and creating a new one as output. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.|