ChatDOC Review, Pricing & Alternatives (2026)

ChatDOC is made by PAODING AI, a Chinese company that built document structure recognition for financial and legal institutions before launching ChatDOC for consumers in 2023. The company says more than one million people use it. Its main selling point is the parser underneath: before any language model sees a file, ChatDOC detects headings, paragraphs, multi-column layouts, tables that span pages and mathematical formulas, so retrieval works on clean, structured content. That focus makes it popular with students, researchers, analysts and finance professionals who read annual reports, academic papers, prospectuses and technical manuals where much of the meaning sits in tables and figures.

You upload a file, and ChatDOC shows the original document beside the chat. Questions return answers with TapSource citations that jump to and highlight the supporting text, so you can check each claim against the page. You can select a table, paragraph or formula and ask about only that selection, which helps with dense data. Collections let Pro users group a folder of files and chat across all of them, and threads keep follow-up questions in context. Supported formats include PDF, DOC and DOCX, Markdown, EPUB, TXT, scanned files and website links. Recent changes added full-document translation that preserves layout, in beta, and rendered HTML snippets in answers.

ChatDOC uses OpenAI models for answers, with GPT-4o available through purchasable question packages and for image analysis, while its own document structure model handles parsing. OCR for scanned pages supports English and Chinese. The same parsing engine is sold to developers as the ChatDOC PDF Parser API, which returns structured text, tables and reading order for use in retrieval-augmented generation pipelines, with page-based packages priced in tiers named Elite, Basic and Lite. ChatDOC Studio and API customers can embed document chat with source tracing in their own apps. Like all retrieval tools, answers depend on finding the right passages, so citations should be checked.

The free plan allows two uploads every 24 hours, 10 files in total, 20 pages per file and a limited number of questions. Pro costs $8.99 per 30 days on auto-renewal, a discount from its listed $16.99, or $89.90 per 360 days, against a listed $169.90. Pro includes 300 uploads every 30 days, no page limit for PDFs, 300 questions a day, 300,000 tokens per non-PDF file, 500 OCR pages a month, multi-document collections, formula recognition and priority support. Extra packages cost $0.29 per file and $0.06 per page, valid for 90 days. ChatDOC accepts Visa, PayPal, Alipay and WeChat Pay.

ChatDOC's strengths are accurate handling of tables, formulas and complex layouts, clear passage-level citations, side-by-side reading and a low Pro price. Its weaknesses are a small free tier, OCR limited to English and Chinese, a narrower model choice than some rivals, and a company based in China, which some organizations weigh for data policy reasons. AskYourPDF offers GPT, Claude and Gemini models with high page limits. PDF.ai adds Capture & Ask for visual regions. ChatPDF is simpler for quick questions, and NotebookLM is free with study features. Choose ChatDOC if your documents are dense with tables and formulas and you want precise, traceable answers.