locking a pdf

[i.mehrzad]

Suppose i want to password protect a pdf document then how do i do it using evince.

[brian_p]

Suppose i want to password protect a pdf document then how do i do it using evince.

I don't think you can, evince is a viewer. mcrypt or openssl will encrypt a file but that may not be what you want.

[Sukarn]

I think acroread can do that, but I'm not sure about it.

[gandaran]

evince and acroread are only pdf readers, maybe you can do it with adobe acrobat online http://createpdf.adobe.com/, haven't tried it so I don't know for sure.
what I use is pdftk, (synaptic) a command line app for manipulating pdf's, it does everything, joining, splitting and encrypt/decrypt pdf's.
there is also a gui for PDFtk http://www.paehl.de/pdf/gui_pdftk.html.

[brian_p]

what I use is pdftk, (synaptic) a command line app for manipulating pdf's, it does everything, joining, splitting and encrypt/decrypt pdf's.
there is also a gui for PDFtk http://www.paehl.de/pdf/gui_pdftk.html.

Interesting. I've not come across pdftk before. It looks ideal for i.mehrzad use.

[kaibob]

Ghostscript can be used to password protect a PDF. The GUI for PDFtk looks much better, though.