I have a file which has exaggerated margins. This forces me to print it as a booklet, otherwise I feel I'm waisting paper (a good size of the font allows me to do so). But if I print directly in booklet format I still get those large margins.
How can I get rid of them? can I create a new file in which those margins do not appear and print it optimally as a booklet?
My favorite tool to crop PDF files is BRISS java program available here: http://sourceforge.net/projects/briss/
Try pdfcrop, available on the package texlive-extra-utils.
pdfcrop --margins 0 file.pdf
This will take the original PDF and crop completely the margins of it, assuming it is generated will real margins. If you want some margins, you can change the 0 for another number like 5 or 10.
I use either Briss as in Sadi's answer, or pdf scissors.
If your file is made of scanned images, you may want an even better (but more time consuming) option: Scan tailor. It is available from the software center.
This software works with scanned books to produce high quality images which you may transform into a pdf by using pdftk or other programs.
I would recommend the freeware PDF Scissors, which automates the process of cutting the white margins off PDF pages in a PDF document.
If you plan to crop out or cut out your desired portion from your PDF document, try PDF Copy Paste. It's a feature-rich product that serves your purpose as well.
