Chat with any PDF using AI — no signup, no page limits, no daily restrictions. Ask questions, get summaries, extract data from any document instantly.
ChatPDF's free tier is heavily restricted. Here's what frustrates 10M+ users:
| Feature | PDFTash ✓ Free Forever |
ChatPDF $5/month for full access |
|---|---|---|
| Signup Required | ❌ No signup ever | ✅ Required |
| Daily PDF Limit | ✅ No limit | ❌ 3 PDFs/day (free) |
| Page Limit Per PDF | ✅ No page limit | ❌ 50 pages (free) |
| Chat with PDF (AI) | ✅ Free | ✅ Free (limited) |
| Summarize PDF | ✅ Free | ✅ Free (limited) |
| Ask Questions About PDF | ✅ Free | ✅ Free (limited) |
| Translate PDF | ✅ Free (12+ languages) | ❌ Not available |
| Compress PDF | ✅ Free, unlimited | ❌ Not available |
| Merge PDF | ✅ Free, unlimited | ❌ Not available |
| Sign PDF | ✅ Free | ❌ Not available |
| AI Form Fill | ✅ Pro feature | ❌ Not available |
| File Size Limit | ✅ Up to 200MB | ❌ 120 pages (free) |
| Price (Full Access) | ✅ Free / $9 Pro | $5/month |
PDFTash's AI understands your entire document — not just the first 50 pages
Unlike ChatPDF, PDFTash gives you a full suite of PDF tools
For free users, yes. PDFTash has no PDF-per-day limit, no page limit, and no signup required. It also includes tools ChatPDF doesn't have: translate PDF, compress PDF, merge PDF, sign PDF, and AI form fill. ChatPDF is AI-chat only; PDFTash is a complete PDF toolkit with AI chat built in.
Go to chat-with-pdf, upload your PDF, and type your question in the chat box. The AI reads your entire document and responds with accurate, context-aware answers within seconds.
Text-based PDFs work best — research papers, contracts, reports, textbooks, manuals. Scanned image PDFs also work but may have slightly lower accuracy depending on scan quality. For scanned PDFs, our AI still extracts and processes the text.
Absolutely. All files are encrypted during transfer, processed in an isolated environment, and permanently deleted after 2 hours. PDFTash never reads, sells, or stores your document content beyond processing your request.
Yes. In the chat interface, simply type "Summarize this document" or "Give me the key points" and the AI will provide a structured summary with main points, conclusions, and any action items.
Other alternatives include Adobe Acrobat AI (expensive), Humata AI, and AskYourPDF. PDFTash is the only free alternative that combines PDF chat with a full toolkit (compress, merge, translate, sign) — all without requiring a signup.