ChatDOC

ChatDOC is an AI tool for chatting with documents. You upload a file and ask questions, request summaries or have complex passages explained, and the answers cite where they came from. Its TapSource feature links each answer to the original text, so you can click a footnote or highlighted figure and see the quoted context in the source. The aim is answers you can verify rather than take on trust. It accepts PDF, DOC, DOCX, scanned files, websites, EPUB, Markdown and plain text, and handles tricky content such as formulas, images and tables that run across pages, with OCR for scans. You can ask questions across a collection of files, build a prompt library, translate a file while keeping its layout, work in more than 25 languages and turn text into infographics. A companion product, ChatPaper, is promoted for research papers. It is useful for students, researchers, analysts and professionals who regularly read long reports, contracts, papers or manuals and need to locate key information quickly. The home page offers a free start with 100 questions and no card needed, and the free plan limits files to three pages each and PDF format, with daily upload and question allowances. A paid Pro plan removes those limits, allowing unlimited pages, files and folders and the full set of supported file types, plus features such as translation. Pro is sold on 30 day and 360 day terms, and image analysis is a paid add on. The dollar amounts did not display in readable form, so exact prices are not stated here.