Side-by-side comparison · Updated April 2026
| Description | The ChatPDF backend API offers robust capabilities for extracting information from PDF files and crafting custom chatbots based on those PDFs. Users can utilize a free tier that includes 500 messages and 5,000 PDF pages per month, with paid plans available for higher usage. This service allows for manual or API-based PDF uploads, supports chatting with uploaded PDFs via stateless messages, and provides options for including PDF page references and streaming responses. | ChatDOC is an innovative AI platform designed for seamless interaction with PDFs and other document formats. Users can interact with documents to get instant answers, summaries, explanations of complex concepts, and quick retrieval of key information. The platform supports multiple formats including PDF, DOC, DOCX, SCAN, WEBSITE, EPUB, MD, and TXT. With features like a Chrome extension, AI summarization, and explanations of complex concepts, ChatDOC aims to simplify document analysis for professionals who need to delve deep into financial statements, annual reports, and more. |
| Category | Chatbot | Productivity |
| Rating | 3.0 (1) | No reviews |
| Pricing | Free | N/A |
| Starting Price | Free | N/A |
| Plans |
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| Tags | PDFcustom chatbotAPImanual uploadstateless messages | AIPDFsummarizationdocumentscomplex concepts |
| Features | ||
| Programmatic PDF information extraction | ||
| Custom chatbot creation from PDFs | ||
| Free tier with 500 messages/month and 5,000 PDF pages/month | ||
| Manual and API-based PDF uploads | ||
| Stateless chat messaging | ||
| PDF page references in responses | ||
| Streaming word-by-word responses | ||
| Simple deletion of PDFs via API | ||
| Multi-language support | ||
| Multiple PDF chats in one conversation | ||
| AI-powered document interaction | ||
| Supports multiple formats: PDF, DOC, DOCX, SCAN, WEBSITE, EPUB, MD, TXT | ||
| Chrome and Edge browser extensions | ||
| AI summarization of long documents | ||
| Explanation of complex concepts | ||
| Instant information retrieval | ||
| Document upload and chat functionality | ||
| Integration with various data sources | ||
| Optimized for professionals handling large documents | ||
| Continuous updates and improvements | ||
| View ChatPDF | View ChatDOC | |
Explore more head-to-head comparisons with ChatPDF and ChatDOC.