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ChatPDF
Chat with any PDF document.
Upload a PDF and ask questions about it in plain English. ChatPDF extracts, summarises, and explains your documents instantly.
chatpdfpdfsummarise
0Best Free PDF & Document AI Tools
Summarize, chat with, and extract data from documents.
5 Free Tools
Verified Free
5 Free PDF & Document AI Tools
SmallPDF AI
All-in-one PDF toolkit with AI.
SmallPDF provides 21 PDF tools—compress, convert, merge, e-sign—plus an AI assistant for summarisation. Free: 2 tasks/hour.
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0DocTranslate
AI document translation tool.
DocTranslate translates PDFs, Word files, and PowerPoints while preserving the original formatting. Free: 2 files/day.
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0Humata AI
Research paper AI assistant.
Humata reads academic papers and legal documents, then answers detailed questions with citations. Free: 60 pages/month.
humataresearchacademic
0PDF.ai
AI PDF reader and summariser.
PDF.ai lets you upload multiple PDFs and ask cross-document questions. Free tier: 1 PDF at a time, unlimited questions.
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0About Free PDF & Document AI Tools
PDF & Document AI tools powered by artificial intelligence are transforming the way individuals and teams work. Our directory lists only tools that offer a genuine free tier, free trial, or open-source licence — so you can start immediately with no credit card.
Every tool in this list has been manually reviewed to confirm the free tier is real and accessible. We update this list monthly to reflect pricing changes, new launches, and tool shutdowns.
How We Rank PDF & Document AI Tools
- Generosity of free tier — unlimited usage scores higher than heavily limited trials
- User ratings — community ratings from verified users
- Popularity — click-through rate and user saves
- Feature set — breadth of what you can do on the free plan