Best way to edit pdf files in Linux

First convert pdf to a text file

sudo apt-get install poppler-utils
pdftotext file.pdf

The above will create a file.txt which you can then use OpenOffice to edit to your hearts content and save it back into a pdf file.

UPDATE

I've found another way to edit pdf file.

- Use gimp
- Split & merge using pdftk **

**
Can use gs command tool too

gs -q -sPAPERSIZE=letter -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf in1.pdf in2.pdf in3.pdf ...