ChatDOC lets you upload a document and ask questions about it in plain language. It accepts PDF, DOC and DOCX, scanned files, EPUB, Markdown, plain text and web pages. Each answer comes with clickable references that jump to the sentence, table or figure it was based on, which makes it easier to check that the AI has not made something up.
It is designed to read difficult layouts, including tables that run across pages, formulas and images, and it can translate a file while keeping the layout. You can group files into collections and ask questions across several documents at once. A sister product, ChatPaper, focuses on academic papers, and there are Chrome and Edge extensions.
The home page advertises a free start with 100 questions and no card needed. The free tier is limited to PDFs with page and file limits, while Pro unlocks more file types and higher limits on 30-day or 360-day terms. Pro prices load interactively on the site and were not shown in a form we could confirm, so check the pricing section before paying.
Do not upload confidential contracts or personal documents unless you are comfortable with the provider's privacy terms.
