Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Skim requires Mac OS X 10.6 or higher.
- Viewing PDFs
- Adding and editing notes
- Highlighting important text, including one-swipe highlight modes
- Making "snapshots" for easy reference
- Navigation using table of contents or thumbnails, with visual history
- View all your notes and highlights
- Convenient reading in full screen
- Giving powerful presentations, with built-in transitions
- Handy preview of internal links
- Focus using a reading bar
- Magnification tool
- Smart cropping tools
- Extensive AppleScript support
- Saving passwords in Keychain
- Export notes as text
- Automatic download of remote PDFs
- Support for Apple Remote Control
- Interaction with LaTeX, SyncTeX, and PDFSync
- Integration with BibDesk and other third party applications
- Spotlight support
- Highly customizable
- And much more...
Buggy. After many years of using it, am switching back to Preview. For those who are interested: the app version whose bugs least bothered me is 1.4.4.
This is in reference to SKIM. Since one of the last updates the free hand drawing tool now lags behind the actual writing using a WACOM table. It is so slow you can't see what you have written or where it is written until a significant time lapse. It use be that you wrote as if you were writing on paper. Now it is basically useless to use as a note taker. Is there some setting that controls this or can you revert it back to the way it use to work.
Nice PDF reader
Ok it's the best PDF reader for Mac and very ergonomic with its multiple types of annotations.... but the annotations are not displayable in other pdf viewer software (adobe, pdf-xchange viewer) including the one that is freely included with a Mac (Preview). So collaboration wise, not interesting.