# ChatDOC vs PDF GPT ChatDOC records 24,212 monthly visits with -31.4% month-over-month growth and Freemium pricing. PDF GPT records 1,507 monthly visits with -7% growth and Freemium pricing. | Metric | [ChatDOC](https://openaitools.app/tool/chatdoc) | [PDF GPT](https://openaitools.app/tool/pdf-gpt) | | :--- | :--- | :--- | | Website URL | https://chatdoc.com | https://www.pdfgpt.chat | | Categories | AI Chatbot, AI PDF Summarizer, AI Document Extraction, AI Summarizer | AI Chatbot, AI PDF, AI PDF Summarizer, AI Search Engine | | Pricing Model | Freemium | Freemium | | Monthly Visits | 24,212 | 1,507 | | MoM Growth Rate | -31.4% | -7% | | Primary Market | United States | Thailand | | Direct Visits | 9,843 | 616 | | Review Score | 4.3 | 3.8 | | Saved Count | 16 | 11 | | Supported Platforms | Website | Website | ## ChatDOC ChatDOC turns long documents into something you can question. Instead of scrolling through hundreds of pages, you upload files and chat with them: ask for a summary, request an explanation of a clause, or have the tool pull specific data points out of dense tables. Unlimited pages and files can be processed on paid plans, and the assistant handles formats including PDF, DOC, DOCX, scanned images, web pages, EPUB, Markdown and plain text. A key part of the experience is verifiability. ChatDOC highlights the passages behind each answer, so you can click through to quotes, cross-page tables, formulas and images rather than trusting an opaque response. It also speaks more than 25 languages, supports OCR for scanned documents, recognises formulas, and can translate whole files while preserving the original layout. Beyond the main chat product, ChatDOC offers ChatPaper for conversational reading of academic papers and a separate PDF Parser API for developers who need structured extraction inside their own applications. A Chrome and Edge extension keeps the assistant available while browsing. A free tier with daily question and page limits lets you evaluate it before committing to the annual Pro plan. **Pricing & Plans:** Freemium. A free plan offers limited daily questions and total question caps with small file-size and page limits; the Pro plan is billed in 30-day or 360-day terms and unlocks unlimited questions, pages and larger files. Image analysis is a paid add-on. - **TapSource answer tracing:** Every answer highlights the source passages, tables and images behind it so claims can be verified in one click. - **Wide format and OCR support:** Handles PDF, DOC, DOCX, scanned files, websites, EPUB, Markdown and TXT, with OCR and cross-page table recognition. - **Multi-language translation:** Chat in 25+ languages and translate entire documents while keeping the original layout intact. - **ChatPaper and PDF Parser API:** Use ChatPaper for academic papers, or integrate the PDF Parser API to extract structured content into your own product. - **Prompt library and visual outputs:** Save reusable prompts and turn findings into infographics to share results with a team. **Strengths:** Answers link back to highlighted sources instead of being opaque; Handles scans, formulas and cross-page tables that basic PDF chat tools miss; Free tier with no card required makes evaluation easy; Separate API and ChatPaper options cover developer and academic needs **Limitations:** Free plan caps daily questions, total questions and file size; Image analysis is a paid add-on rather than included; Best value requires committing to an annual Pro plan [Profile (Markdown)](https://openaitools.app/tool/chatdoc.md) ## PDF GPT PDF GPT turns document reading into a conversation. You upload PDFs, ask whatever you need to know — a specific figure, a definition, the gist of a chapter — and the assistant responds using only the contents of your documents. The distinguishing feature is citation: each answer is backed by a clickable reference to the page it came from, with the relevant passage highlighted, so you can verify claims instead of trusting the model. Search works across multiple uploaded documents, which is what makes it practical for literature reviews, contract comparisons and multi-file research. Beyond question answering, the site positions the tool for generating study material: summaries, study guides and presentation outlines built from the source PDF. Translations are supported across more than 90 languages, which helps when the source document is not in your working language. Organisation features include tagging documents and then chatting with groups defined by those tags, keeping separate projects from bleeding into each other. The site states it is trusted by over 500,000 researchers and professionals and offers a free entry point, with 'Try for Free' as the primary call to action on the homepage. The product is operated by Pearl Labs. Because a free tier is advertised but published price tiers are not shown on the homepage, check the signup or pricing flow for the exact limits on file size, document count and advanced features before relying on it for large workloads. **Pricing & Plans:** The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. - **Cited answers with page references:** Every response links back to the page it came from and highlights the supporting passage, so you can check the evidence rather than take the answer on trust. - **Summarise long documents:** Generate instant summaries of lengthy PDFs to decide what deserves a close read and what you can skim. - **Search across multiple PDFs:** Upload several documents and query them together, finding a specific detail without opening files one by one. - **Tag and organise documents:** Apply tags to PDFs and then chat with a group defined by a tag, keeping distinct projects separated. - **Translation across 90+ languages:** Read and work with source documents in other languages, with output aimed at your working language. **Strengths:** Answers include clickable page citations and highlighted passages; Handles multiple PDFs in one chat, not just single files; Summarisation, translation and study-material generation in the same tool; Tagging keeps separate research projects organised **Limitations:** Detailed paid pricing and usage limits are not published on the homepage; Answer quality still depends on how text-searchable the PDF is; Scanned or image-only PDFs may need OCR before they work well [Profile (Markdown)](https://openaitools.app/tool/pdf-gpt.md) ## Frequently Asked Questions ### How do ChatDOC and PDF GPT compare in monthly traffic? ChatDOC has 24,212 monthly visits, while PDF GPT has 1,507. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? ChatDOC has a month-over-month growth rate of -31.4%; PDF GPT has -7%. ### How does pricing compare? ChatDOC: Freemium. Freemium. A free plan offers limited daily questions and total question caps with small file-size and page limits; the Pro plan is billed in 30-day or 360-day terms and unlocks unlimited questions, pages and larger files. Image analysis is a paid add-on. PDF GPT: Freemium. The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Offers vastly superior long-form reasoning and document synthesis, but lacks ChatDOC's granular page-level citation highlights. | [.md](https://openaitools.app/tool/claude-2.md) | | 2 | [Kimi AI](https://openaitools.app/tool/kimi-chat) | 19,632,261 | -23.4% | Free | Moonshot AI's long-context assistant for research, coding, and agentic work | [.md](https://openaitools.app/tool/kimi-chat.md) | | 3 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | AI research platform for reading, understanding and writing scientific papers | [.md](https://openaitools.app/tool/scispace.md) | | 4 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 5 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 6 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents | [.md](https://openaitools.app/tool/updf-ai.md) | | 7 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | [.md](https://openaitools.app/tool/chatpdf.md) | | 8 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Chat with any PDF and get cited answers instantly | [.md](https://openaitools.app/tool/pdf-ai.md) | | 9 | [AskYourPDF](https://openaitools.app/tool/askyourpdf) | 127,733 | +14.1% | Freemium | Chat with any PDF and add an AI chatbot trained on your own content | [.md](https://openaitools.app/tool/askyourpdf.md) | | 10 | [Sharly AI](https://openaitools.app/tool/sharly-ai) | 65,059 | -10.9% | Freemium | Extracts and compares long documents and spreadsheets with verified citations, but has a lighter feature set. | [.md](https://openaitools.app/tool/sharly-ai.md) | --- Source: https://openaitools.app/compare/chatdoc-vs-pdf-gpt More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)