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ChatPDF

ChatPDF

Chat with any PDF - Your PDF AI to ask your PDF anything

4.3•31 reviews•

337 followers

Chat with any PDF - Your PDF AI to ask your PDF anything

4.3•31 reviews•

337 followers

Visit website
Note and writing apps
•
PDF Editor
•
AI Chatbots
ChatPDF is the fast and easy way to chat with any PDF, free and without sign-in. Talk to books, research papers, manuals, essays, legal contracts, whatever you have! Millions of students, researchers and professionals use this AI tool to instantly answer questions from any PDF file.
  • Overview
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  • Reviews31
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Company Info
chatpdf.com
ChatPDF Info
Launched in 2023View 1 launch
Forum
p/chatpdf
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ChatPDF gallery image
ChatPDF gallery image
ChatPDF gallery image
Free
Launch tags:
Productivity•Artificial Intelligence•Chat rooms
Launch Team
Mathis Lichtenberger

What do you think? …

Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
📌
Hey Product Hunt 👋 Yesterday OpenAI released the new ChatGPT API, which is better than the best previous OpenAI models and 90% cheaper to use! I had fun integrating it to chat with any PDF - free and without sign-in! Let me know what you think 😊
Report
2yr ago
Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
@joel_diigo Thanks! Sure I can share! When uploading the PDF, ChatPDF is using the embedding API from OpenAI to create a semantic index of the different paragraphs of the PDF file. Later when asking a question, the question is also embedded into the same vector space using the embedding endpoint again. This allows us to find the paragraphs that are related to the question from the PDF using a vector similarity metric. A few of these paragraphs are then put into the context of the text-generation API (The ChatGPT API in this case), in addition to a prompt that tells it to synthesize an answer out of these paragraphs. The project you linked is not related, thanks for sharing! There are quite a few projects similar to this. What sets ChatPDF apart is the speed and ease of use :)
Report
2yr ago
Artem Fedoskin
Artem Fedoskin
@joel_diigo @xathis that is a really interesting approach! Am I right that upon uploading you parse the file and then you get the most similar paragraphs for each question and then feed this context to ChatGPT API for completion?
Report
2yr ago
Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
@joel_diigo @fedoskin yep, exactly!
Report
2yr ago
wonchul cho
wonchul cho
@xathis How did you create the initial summary and proposed questions? I'm not sure which paragraphs were used as prompts to generate them. Anyway, the implementation is impressive and the output is really excellent. You are the best!
Report
2yr ago
Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
@neofrigate Thanks! For the initial greeting message, it's just using the first few paragraphs of the PDF
Report
2yr ago
Nikolay Karelin
Nikolay Karelin
Briefly

Briefly

Nice app! Happy to upvote! Do you plan to make some blog posts on the details: PDF pre-processing, limitations and the like?
Report
2yr ago
Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
@nikolay_karelin Thanks Nikolay! I'll let you know when I decide to write about it :)
Report
2yr ago
Artem Fedoskin
Artem Fedoskin
This is a really cool concept! Could you tell me please – how many prompts you use to analyze the pdf?
Report
2yr ago
Mathis Lichtenberger
Mathis Lichtenberger
ChatPDF

ChatPDF

Maker
@fedoskin Thanks Artem! To "analyze" the PDF, different chunks are embedded using the embedding API, not a typical text completion prompt. I described more over here: https://www.producthunt.com/post...
Report
2yr ago
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Do you use ChatPDF?

4.3
Based on 31 reviews
Review ChatPDF?

ChatPDF is praised for its user-friendly interface and ability to simplify interactions with PDFs, making it accessible even to non-technical users. It is particularly valued for academic and professional use, allowing users to quickly extract information from lengthy documents. However, some users note limitations, such as the inability to combine multiple PDFs and occasional irrelevant responses. The makers of UPDF highlight its comprehensive features, including fast processing and accurate responses, which enhance the overall experience of chatting with PDFs.

Roc LanMath LiangSiddhartha Roy
+28
Summarized with AI
Pros
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Pros
easy to use (5)
saves time (3)
fast document processing (2)
helpful for academic work (2)
summarize/translate/explain/rewrite (2)
Cons
cannot combine multiple PDFs (2)
sometimes inaccurate responses (2)
Alex Camilar
Alex Camilar
Bliq

Bliq

•19 reviews
Uploaded a PDF file, was able to ask it questions and joke around about the content. 10/10
Report
2yr ago
Sonya Pobiedimska
Sonya Pobiedimska
•1 review
Simply great tool
Report
2yr ago
N. M. Padhy
N. M. Padhy
•1 review
fgfh
Report
2yr ago