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Overview Reference Manager Read & Annotate Add & Organize Collaborate Backup, Sync & Mobile Network & Discover

Read and annotate your PDFs

Save time navigating PDFs

Open multiple PDFs in separate tabs. Read, take notes and switch back to your research library instantly.

Annotate and highlight

No more need for hand-written notes, sticky notes and highlighter pens. You can now annotate, highlight, and add sticky notes directly to your PDFs.

Available for Mac, Windows and Linux

Share annotations with others

Simply create a private group, add colleagues and start sharing. Every time you add notes or highlight a paper, it will be visible to members of the group.

Save and print annotations

All your annotations can be saved within your PDFs, so when you print them out, your ideas travel with you.

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