ChatPDF

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

4.1•16 reviews•

347 followers

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

4.1•16 reviews•

347 followers

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Note and writing apps

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PDF Editor

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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.

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Launch tags:Productivity•Artificial Intelligence•Chat rooms

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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 😊

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3yr ago

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 :)

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3yr ago

@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?

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3yr ago

ChatPDF

Maker

@joel_diigo @fedoskin yep, exactly!

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3yr ago

@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!

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3yr ago

ChatPDF

Maker

@neofrigate Thanks! For the initial greeting message, it's just using the first few paragraphs of the PDF

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3yr ago

Briefly

Nice app! Happy to upvote! Do you plan to make some blog posts on the details: PDF pre-processing, limitations and the like?

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3yr ago

ChatPDF

Maker

@nikolay_karelin Thanks Nikolay! I'll let you know when I decide to write about it :)

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3yr ago

This is a really cool concept! Could you tell me please – how many prompts you use to analyze the pdf?

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3yr ago

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...

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3yr ago

One suggestion/feature request i had is : if instead of the user, downloading a pdf & then uploading it to chatpdf, if it was a pdf available online, if one could pass the weburl of the pdf & chatpdf could take care of internally downloading the pdf & ingesting it. Thoughts on this ?

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3yr ago

ChatPDF

Maker

@acgt01 That's already possible! Find the "From URL" button on the bottom right of the input field!

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3yr ago

Tried it today & absolutely love it. Fantastic work @xathis ! I tried it on a research paper on cancer genomics & it was able to "chat" & give *intelligent* answers ! Mathis, is the code for chatpdf opensource ? If not, would love for you to consider making it opensource

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3yr ago

Hello Mathis bro. Actually, I have large pdf file of size 200 mb. And, Can i compress it to less than 30 mb and can i use it there? Any ways to do that much high compression?

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3yr ago

Hi Mathis, excellent work! Do you have to pay to use the ChatGPT API? As a PDF can contain substantial number of tokens...

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3yr ago

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4.1

Based on 16 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.

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ChatPDF

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

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

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