Sort and store / tag your PDF's as well as putting a button on Safari alowing you to take full web page shots and then storing them to your pdf library ! simple to use .
I Love this 1 big time

For all those using this for academic software it may be best to try Papers. It provides a much cleaner way of storing PDFs and makes things much easier to find in terms of science. Plus it has a whole bunch of other advantages.

http://osx.iusethis.com/app/papers

This may just be the answer I've been after for receipts though...

Very, very useful. Especially for anyone who has a lot of journal articles and other research documents in pdf format. I am in the process of scanning 15+ years worth of paper articles that had previously languished uncatalogued (more or less) in filing cabinets. Once digitised and tagged within Yep they are infinitely more useful to me. Using tags I can actually retrieve and refer to articles that previously I might have forgotten I had.

While this is incredibly useful, be very, very careful when using this app. For no apparent reason, it dumped 641 of my PDFs, which I spent months gathering and organizing, into the trash, with no warning at all, even though I did set it to warn me before moving files to the trash.

The description should be updated to reflect the actual name of the product, the "kip" references are confusing.

I love this app. I have hundreds of academic journal articles on my Mac, and Yep enables me to find and use them effectively - previously I used Spotlight. Best feature? Auto-tagging.

For PDF and image preview... You bettet try "FileBrowse"

Scratch the previous comment. Apparently there's a new version…

The best program I've found yet to use for prepared cases for collegiate parliamentary debate. Gotta find them quick!

However, the interface is a bit clunky and an alternate list view may be ideal. Seeing a PDF thumbnail that's 150×100px is not legible and really just wastes space.

yep is shareware, not freeware.