How to upgrade pdfsam from 1.1.4-1 version included in ubuntu sofware center to 2.2.1 version, either the basic or enhanced version, in Ubuntu 12.04?
I only found a possible solution here but it is for ubuntu 9.10 and the file system is different.
Download the PDFsam Zip archive, extract it wherever you want, make the jar-file executable and then start it.
Open a terminal and paste the following commands.
you can download it from this link : http://www.practicatechnical.com/files/pdfsam_2.2.1.deb
and from the downloaded directory you can install with
hope that helps :)