With Skim it is possible to save the pages that we have liked most of a file in favorites, it integrates into Spotlight and it even allows us to save passwords for encrypted files. It is also compatible with LaTeX and PDFSync. Something very useful if we want to show a PDF to a class with a projector. Thanks to Skim it is also possible to underline the text and it even supports the use of the Apple Remote to change the page. Unlike other readers, Skim is a program with a well developed interface, totally open source and that student's will probably like because it allows them to add notes and bookmarks to PDFs. Because even though most people may think that PDF belongs to Adobe, it is no longer a proprietary format and is now an open standard, so using applications by third parties are equally valid. Skim is a free application that will allow us to view the most widespread format to distribute documents, PDF.
