Skim is a free PDF reader and note taker for the Mac. There are many PDF annotators out there but most require payment. This software from Skim is free and the program makes it easy to add notes to your PDF files, and what’s more, you can save the settings.

Skim for Mac also lets you add different types of annotations and marking, and you can insert them in your PDF files which can be very useful. In addition, the program lets you add movable text boxes for all the notes you are jotting down. However, you can do more than just add notes as you can also highlight text, underscore and strike through them if needed.

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If you have added a lot of notes it may become difficult to tell them apart, so it’s a good thing that Skim allows you to change the editing mark colors and the notes themselves. It’s very easy to put these marks on as well as hide them if there are too many. You can also undo these and better yet you can save the marks and notes separately, perfect if you just want to study the notes and edit them without opening the PDF file.

Skim for Mac also lets you search for text inside the PDF file, another essential feature if the file is large. These features alone should suffice for most users, but Skim for Mac has other tools that help you navigate longer PDF files such as reading lines and bookmarks. Skim for Mac has a lot of features, but the interface is easy to use, so it’s worth a download.


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