Sungju's Slow Life

Personal journal

Remove password from PDF file

Sometimes, encrypted pdf file can be cumbersome. Especially in Mac OS X because default pdf viewer does not provide password decryption feature.

PDFLab does a good job in Mac OS X, but with the newest Snow Leopard, it does not work correctly. I still couldn’t find similar software as PDFLab.

Fortunately, in Linux box, you can easily remove password. To do this, your system should have installed ‘ghostscript’ and ‘poppler-utils’ packages. Following snippet is the simplified version of conversion script.


filename=`basename $2 .pdf`
pdftops -upw $1 $filename.pdf
ps2pdf $

First argument is password which is use to decrypt and second argument is the filename to convert.

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