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Adobe Acrobat Reader vs PDF Annotator: catalog facts
Adobe Acrobat Reader	PDF Annotator
Freemium Free to use; editing and conversion require a paid Adobe Acrobat subscription.	Paid Paid software with a free trial.
Windows, macOS, Android, iOS	Windows
Faithful rendering of complex PDFs and forms Form filling, signing and annotation included free	Handwritten annotations with pen and touch on tablet PCs Annotations saved into the original PDF and viewable anywhere
Frequent prompts to upgrade to paid Acrobat Large install compared with lightweight readers	Windows only Paid after the trial
Downloadable app	Downloadable app
Closed source	Closed source
License: Proprietary	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.