ChatDOC vs DeepPDF

ChatDOC is a web document assistant that lets you converse with uploaded files in natural language. It can summarize, extract, locate, analyze, and rewrite content from PDFs, Word files, Markdown, ePub, TXT, and scanned documents. A folder upload supports questions spanning multiple documents. Responses include page and reference citations, links that highlight source passages, and highlighted numerical values for checking answers. ChatDOC provides an API for embedding document processing and generated responses in other applications. Its PDF Parser API recognizes text, tables, and images and converts PDF material into formats such as JSON. Processing requires an internet connection. The service runs on the web, through a browser extension, and via API. A free plan is available; Pro costs $8.99 a month or $89.90 a year, with larger limits.

DeepPDF is a web PDF assistant, also offered as an extension, with free plans listed. Users can chat with PDFs, create summaries, compare translations, explain terms, and analyze images or formulas. OCR makes scanned, image-based PDFs searchable. Translation provides a side-by-side bilingual view in more than 100 languages. Conversion tools handle PDF to Word, Excel, PowerPoint, and other formats, plus Word to PDF. Utilities include compression, merging, splitting, page deletion, watermarks, signing, and online text editing. Google Scholar access supports academic-paper searches and recommendations. The browser upload area states a 200 MB maximum PDF size. The Free plan is free, billed forever, with 10 PDFs up to 5 MB each and limited AI and features. Pro is free during beta for 200 PDFs up to 50 MB, while Max is free during beta for 1,000 PDFs up to 200 MB; both list unlimited AI and features. Email support and a Discord community are available.