Sometimes you need additional white space in your PDF-file. (e.g. for taking notes in Xournal)
pdfenlarger will do this for you. Just choose the size of the additional space.
You can also pass a side where the additional space should be added. (Default is right.)

usage: pdfenlarger.sh <input.pdf> <output.pdf> <additional_space> [top|right|bottom|left]
example: pdfenlarger.sh input.pdf output.pdf 200 left