How does ChatPDF apps work?

It involves two steps: document ingestion and similarity search. During ingestion, relevant documents are provided to the model as training data. In similarity search, the model compares the user's query with the learned representation of the documents to retrieve relevant information. This enables the model to generate more informed responses by incorporating external knowledge.

Can I use ChatPDF with a multiple PDFs?

With PDF Pals, yes. Simply select your PDFs and then choose to open with PDF Pals. Read more: https://pdfpals.com/changelogs/v1.1#chat-with-multiple-pdfs

Can I use ChatPDF with scanned PDFs?

Yes, PDF Pals employs Optical Character Recognition (OCR) technology to enhance its understanding and processing of scanned PDF documents.

Can I communicate in a different language other than English?

Absolutely. You are free to switch the output language at any point during the conversation. As a default setting, PDF Pal will always respond in the same language as your questions.

Yes, as long as your API key has GPT-4 access. Alternatively, you can sign up for an account at https://openrouter.ai and enjoy using multiple models, including GPT-4, GPT-4 32K and Anthropic Claude v2

Stop wasting hours reading PDFs

Name: PDF Pals
Brand: PDF Pals
Rating: 4.8 (575 reviews)

Instantly chat with any PDF on your Mac.

No spams. We will send only one email
with the download link.

Chat with your PDFs on your Mac.
No file size limit!

Fast: Native macOS app with powerful OCR

Secure: Your documents stay in your Mac

Privacy-friendly: Your data is stored locally. No cloud vector database needed.

Flexible: Bring your own API Key or rent one

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No uploading required. No file size limit.

Native, Fast & Powerful: Not another 500MB Electron app. No file size limit!
Flexible.: PDF Pals supports multiple API providers: OpenAI, Azure OpenAI Service & OpenRouter.
Smart.: PDF Pals supports scanned PDFs and complex forms using a powerful OCR engine.
Secure.: Your documents stay in your Mac. We never upload your files. PDF Pals stores your API key securely in the Apple Keychain.
Respect Your Privacy.: No in-app analytics. Your training data is stored locally.
Easy to backup.: All your data is in a local SQLite database.

“ PDF Pals is a great way to interact with multiple PDFs simultaneously on your local device. It's super-helpful when you need the ability to summarize information from multiple documents about a single topic. The ability to customize the AI model settings and the system prompt is also very useful.”

Jasonn Smith

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For Researchers and Academics

Improve your research and academic processes

Easily extract important information from research papers, academic articles, and e-books to enhance your studies and research.

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Effortlessly review and analyze legal documents, case files, and contracts, improving productivity and accuracy

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Instantly find and extract the key information you need from documentation to accelerate software development and boost productivity.

People l💙ve PDF Pals

Wayne W Marsh

Learning Machine

I've tried a few different PDF chat apps because it's such an effective way to interact with Docs. This one is now my go-to because it has features that you can't find elsewhere so it really is a cut above the rest. Add to that I like developers that are willing to interact with their users and actively look to improve the overall experience. As an early adopter it's been a pleasure to see it take form into a must have app...

Jason

Founder

PDF Pals is a great way to interact with multiple PDFs simultaneously on your local device. It's super-helpful when you need the ability to summarize information from multiple documents about a single topic. The ability to customize the AI model settings and the system prompt is also very useful.

emil

Programmer & Indie Hacker

I’ve been using Daniels products for the longest time now. KTool impressed me as the best solution for sedning articles to Kindle, BoltAI is (in my oppinion) the best AI integration for Mac, and PDFPals is no different. With it’s slick UI, local indexing, multi-PDF support and amazing speed, it is truly the best way to chat with and analyze a PDF, all without a single subscription! Highly recommend.

legendary 🙄🤔🤯

@1LegendaryMan

@daniel_nguyenx This app keeps getting better. I use it daily! Keep up the good work

marble

@itsmrble

I'm thoroughly enjoying PDFPals based on my tests today. It's functioning flawlessly!

John

@cz_blnance__Bt0

@daniel_nguyenx This is damm cool

Jack Culpan

@JackCulpan

@daniel_nguyenx this is amazing Daniel, love it!

Minh-Phuc Tran

@phuctm97

@daniel_nguyenx Damn, this makes perfect sense. I’m already used to download & open pdfs using a Mac app anyway. This can just replace my default pdf app with AI chat features 🤯

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Frequently asked questions

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