Head-to-head · AI PDF Tools
ChatDOC vs ChatPDF
ChatDOC leads on 0 checks, ChatPDF on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreChatDOC · 8.8/10
- Free planboth
- Most featuresChatPDF · 1 of 4
ChatDOC scores higher on our rubric for ai pdf tools: 8.8 against 8.5 out of 10; our editors rank them #5 and #8.
ChatDOC is the better fit for multi-document research with citations. ChatPDF is the better fit for simple free PDF and multimedia chat.
- ChatDOC fits best
Multi-document research with citations
- ChatPDF fits best
Simple free PDF and multimedia chat
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Side by side
| Feature | ChatDOC 8.8/10 Visit ↗ | ChatPDF 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.8 | 8.5 |
| Ranking | #5 in AI PDF Tools | #8 in AI PDF Tools |
| Best for | Multi-document research with citations | Simple free PDF and multimedia chat |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $89.90/yr | — |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Browser extension | Cloud |
| Platforms | Web, Chrome extension | Web |
| Features ChatDOC 0/4 · ChatPDF 1/4 | ||
| Multi-file chat | Not checked yet | Not checked yet |
| Source citations | Not checked yet | Not checked yet |
| AI for scanned PDFs | Not checked yet | Not checked yet |
| API access | Not checked yet | ✓ (best) |
| Specs | ||
| Upload limit | Not checked yet | Not checked yet |
| Maximum file size | Not checked yet | Not checked yet |
| Export formats | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | ChatDOC is a web-based AI assistant for asking questions about PDFs and other documents. It suits researchers, analysts, students, and teams that need to summarize files, extract information, inspect tables and formulas, or compare content… Read the review → |
ChatPDF is a web-based AI document tool for students, researchers, and professionals who need to ask questions about files rather than read them line by line. It summarizes entire PDFs, chapters, and documents; supports PDF, Word,… Read the review → |
Strengths and trade-offs
ChatDOC — where it wins
- Cites answers with page numbers and linked references
- Analyzes tables, formulas, scanned pages, and document text
- Supports multi-document chat, URL imports, web, API, and Chrome extension
Where it doesn't
- Free plan limits uploads and questions
- Pro plans allow 300 files every 30 days
- OCR for scanned pages is available on Pro
ChatPDF — where it wins
- Analyzes PDF, Word, PowerPoint, Markdown, and text files
- Links answers to clickable references on source PDF pages
- Adds YouTube transcript analysis, folders, and an API
Where it doesn't
- Free usage is limited to two documents daily
- Access is web-only
- Focuses on document chat rather than broader PDF editing
- ChatDOC8.8/10 · Free plan
A capable research assistant for asking cited questions across PDFs and documents.
Visit ChatDOCFull verdict → - ChatPDF8.5/10 · Free plan
A simple web tool for chatting with documents and YouTube transcripts.
Visit ChatPDFFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update