RSS Feed Reader
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Get a simple overview of your RSS and Atom feeds in the toolbar
4.37,400 reviews500K+
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PDF annotator
PDF annotator for research papers + integrate ML in the future
PDF annotator screenshots
Overview
PDF annotator for research papers + integrate ML in the future
Pricing
PDF annotator is free. There is no paid tier to consider.
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View ExtensionFrequently asked questions
Is PDF annotator free?
Yes, PDF annotator is free to install and use.
What are the best PDF annotator alternatives?
Browse the Research category for comparable options.
Related extensions to PDF annotator
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Compare PDF annotator with the obvious rivals
Side-by-side feature tables, pricing and a clear recommendation.
Zotero Connector vs ScholarcyReference capture and citations against automatic paper summarising.Zotero Connector vs GlaspBoth are research extensions people shortlist together for research — see how ratings, install base, pricing and day-to-day use differ.PDF annotator alternativesRanked replacements if PDF annotator is not the right fit.All comparisonsThe full compare hub, grouped by category.