Crop pdf: CUPS- PDF (as virtual printer) But I

CUPS- PDF (as virtual printer) But I could not find any settings in okular and qpdfview to crop or resize the pdf pages by their trimbox values. I have printed my pdf file whose pages have trimbox values (with my way or ready pdf file that I know trimbox values properly added to the pages) as again pdf file in Boomaga and CUPS- PDF . However, if wanting to crop a scanned (image) pdf file, my impression is that pdfcrop simply fails. I imagine that ImageMagick is capable of doing the trick, possibly by (also) making us of pdftk. Info: PDF -Shuffler is a small python-gtk application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface. 2 I saw this Command line tool to crop PDF files. Being ignorant couldn't understand it. How can I crop all the pages with same dimension (except last and front)? This is precisely the book. Also how to select the dimensions properly? That will be helpful.