The PDF Reader for Research

Use it for FREE on your iPhone, iPad or Mac today.

Highlights in the App Store

Unlock advanced features by becoming a Pro subscriber. A free trial is available in the app.

Export Anywhere

Annotate Faster

Lookup Citations

Smart Copy

Files Integration

Dark Mode

Highlights is Different

Turn your annotations into beautiful notes.

Export Anywhere

It's your notes, you decide where they go.




Keep It



You can also export as Markdown, HTML or PDF files.

Lookup Citations

Automatically find DOI-links in scientific articles and download the correct metadata.

Markup a citation and tap the link icon to look it up. If you have already read the citation Highlights will link it to the PDF on your device.

Smart Copy

Smart Copy gives you the desired output for any annotation, letting you copy table data directly into a spreadsheet.

Images as PNG

Tables as CSV

Citations as BibTeX

Customize Appearance

Highlights supports dark mode and custom accent colors on all your devices.

Files Integration

Browse your files using the iOS document browser or the Finder on your Mac. Store your files on device, in iCloud Drive, Dropbox or other sync service.

Continue working on the same file on another device using Handoff. Highlights stores your annotations as standard annotations and does not lock your PDF files in.

And Much More..

See the full feature list

Try Highlights for Free!

Highlights in the App Store
Highlights in the Mac App Store
Highlights in the App Store