Free and open first
Best AI PDF Assistants in 2026 — page 2
- 27 apps
- Research read 23 Sept 2026
- How the order is worked out
- 26
Sharly AI
Free plan WebSharly AI brings document summaries, cross-document questions, and citation support into a collaborative research workspace.
- 27
PDF-ChatGPT
Paid APILinuxMac+3PDF-ChatGPT provides a self-hosted PDF question-answering workflow with semantic retrieval and citations.