Mac how to put a password on a pdf

Recently I needed to demonstrate proof of purchasing something via my credit card statement. Easy enough, I download my most recent statement as mac how to put a password on a pdf PDF file from American Express. Then I wanted to use Adobe Acrobat Pro’s nifty redaction features to redact all the irrelevant information from the appropriate page of the bill. Except Amex has decided that the statement should be a protected PDF, which means you can view it but cannot change it.

I suppose they hope to curb statement forgeries, but as anyone akamai knows: if I can view it, I can edit it. Mac OS X used to ignore DRM and let you edit protected PDFs, but doesn’t seem to on Snow Leopard. I hunted around for a tool to unlock the PDF. There are lots of tools for Windows, which didn’t interest me. 25 which seems kinda steep for a single use.

They have a downloadable demo, but it will just create an unlocked version of the first page of the PDF, which wasn’t the page I wanted. And of course I can’t edit the source PDF because it is protected, so the demo wasn’t useful to me. It has an X11 GUI component, as well as command line tools. I had to compile it by hand.