ChatPDF Review (2023): Ask Anything from a PDF (& Save Time)

ChatPDF Review Rating
Overall Rating 🌟 4.5/5
Speed πŸš€ 4.0/5
Usability πŸ‘ 4.75/5
Time Saveability ⏱️ 4.0/5
Reliability πŸ”’ 4.0/5

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ChatPDF Overview

ChatPDF is a top-notch, user-friendly tool that offers a reliable way to extract and interact with information from PDFs efficiently.

ChatPDF drag and drop view

Ever wished for an assistant that could read and interpret all those lengthy PDFs for you?

Well, your prayers have just been answered!

Meet ChatPDF – a ground-breaking AI-powered chatbot that literally chats with you about PDF content.

Think of it as your personal ‘PDF whisperer.’

Got a question? It’s got the answer.

It’s like having someone who’s already done all the heavy lifting for you. Let’s dive in, shall we?

6 Use Cases for ChatPDF

Let’s take a closer look at the main use cases for ChatPDF to give you a better understanding of how this amazing piece of tech works.

Here’s a short summary from the ChatPDF website:

ChatPDF use cases

#1 For Students πŸŽ“

Overwhelmed by all that studying?

We’ve got just the thing! πŸ“š

With ChatPDF, you’re not alone in tackling those giant textbooks or deciphering complex study material.

It’s the perfect companion for your academic journey, helping you breeze through exam preparations, get unstuck with your homework, and ace multiple-choice questions.

It’s your personal AI tutor who’s always on call, making studying less stressful and more successful.

#2 For Researchers πŸ”¬

Navigating through heaps of scientific papers, academic articles, and lengthy books can feel like a maze. πŸ“š

Enter ChatPDF, your research companion!

It helps you extract the exact information you need, saving you hours of intensive reading.

Whether you’re looking for a specific detail or a broad overview, it provides concise, useful summaries, letting you focus on what really matters – your groundbreaking research. 🌟

#3 For Professionals πŸ‘©β€πŸ’ΌπŸ‘¨β€πŸ’Ό

Dealing with legal contracts, financial reports, and exhaustive manuals?

ChatPDF has got you covered. πŸ’Ό

Ask any question to any PDF and get detailed insights, fast.

No more poring over pages of dense text.

Whether you’re making critical decisions based on financial reports or understanding intricate legal contracts, it’s like having a professional consultant right by your side.

#4 Any Language 🌍

ChatPDF is truly a cosmopolitan bot! πŸ—ΊοΈ

It not only accepts PDFs in any language but can also converse in any language.

So, whether your document is in English, Spanish, Chinese, or any other language, ChatPDF has you covered.

#5 Cited Sources πŸ“

With ChatPDF, you’ll never have to play the guessing game about where your information came from. πŸ•΅οΈβ€β™€οΈ

Each answer it provides is accompanied by references to its source in the original PDF document.

It’s like having a diligent librarian at your service, giving you precise information along with its exact location.

#6 Simple and Secure πŸ”’

ChatPDF is more than just smart, it’s simple and secure too. πŸ›‘οΈ

It’s designed to be fast, easy to use, and absolutely free.

But don’t worry, your files are safe with us.

Stored in secure cloud storage, your documents will never be shared.

It’s as trustworthy as it gets, ensuring that your privacy is always prioritized. πŸ‘

My Experience with ChatPDF

Let’s actually try the tool to see whether it actually works or is just hype.

I found a sample PDF about computers and security that I’m using as a resource.

Sample PDF

I entered the URL of the PDF for ChatPDF to analyze.

Chat with PDF from URL

It only took about 15 seconds for it to find the PDF.

Here’s a view that opens up once I uploaded the PDF to the system:

ChatPDF chatting view

This is clearly a nice-looking chat view.

The PDF is on the left-hand side.

On the right-hand side, I can ask ChatPDF anything about the PDF, which is impressive.

But let’s see if it actually works. Let’s first ask how to avoid viruses based on the PDF:

Example chat 1

As you can see, the answer looks impressive. There are even references to which page in the PDF it found the information.

But can this really work? Is it actually right?

Well, let’s just check the PDF and see page 10:

Answer from PDF

So the ChatPDF pretty much nailed it. And it did it blazingly fast in only 15 seconds.

This is pretty impressive to me.

But that’s just one message. Let’s try another one.

Example chat 2

Once again, in just 10 seconds or so, it found the answer, references it nicely, and even formatted a short overview.

Here’s page 10 in the PDF from which ChatPDF got the information. Pretty impressive!

Answer from PDF

But those pieces of information covered big parts of the page and perhaps those were just easy to find.

Let’s try to ask it for some nitty gritty details.

Example question 3

Once again, it found the answerβ€”really fast!

Next, let’s try to see if it understands the point of the document as a whole.

Example question 4

Pretty good job! Obviously, because this is just a summary, it left something out. But this is impressive.

One issue I found with ChatPDF was that the UI got stuck sometimes. For example, it did not answer my very first question at all. Also, I once got a mysterious error message from the tool.

Also, because of the limitations of AI, ChatPDF is not good with super-long PDFs. The one that I used was only 10 pages in length. But if you have like 1,000 words, it’s getting a lot harder.

Of course, this technology is getting better and better all the time. Only time will tell how good these types of software are in a couple of years.

But for now, it’s already super impressive and saves a ton of time.


ChatPDF pricing
Detail Free Version Pro Version
Price $0/mo $5/mo
Pages/PDF 120 2,000
Size/PDF 10 MB 32 MB
PDFs/day 3 50
Questions/day 50 1,000

Bottom Line

After a hands-on experience with ChatPDF, I can think that it’s a valuable tool for anyone working with PDFs regularly.

Its ability to interact with PDF content and answer user queries provides an unprecedented level of efficiency and convenience.

For students, researchers, and professionals, this tool is a game-changer, extracting detailed insights quickly and saving precious hours of manual reading.

My own experience with ChatPDF was mostly positive.

The tool was able to accurately locate and provide answers from a PDF document in a remarkably short time.

Whether you’re seeking an in-depth explanation or a quick summary, ChatPDF delivers with precision.

However, it’s important to note that while impressive, ChatPDF does have its limitations.

There were occasional instances where the UI got stuck, and it sometimes struggled with super-long PDFs. As with all AI tools, it’s crucial to double-check the facts, especially when the stakes are high.

I highly recommend ChatPDF for anyone looking to navigate through PDFs more smoothly.

Despite some minor drawbacks, its strengths significantly outweigh them.

Just remember – while it’s an excellent assistant, don’t fully rely on it to automate all processes.

Always double down on critical facts, and you’ll find ChatPDF to be a reliable ally in your work.

Geek Alert: ChatPDF API

If you want to integrate ChatPDF functionality in your own application, you can use their API for that.

There’s great documentation on how to do this on their site.

But let me summarize:

API Pricing πŸ’°

Kick off your ChatPDF API experience with 500 messages and 5,000 PDF pages free each month! Need more? Head over to ‘My Account’, expand ‘Developer settings, and click the ‘Change Plan’ button to switch to a paid plan.

Authentication πŸ”‘

Your secret API key is the key to all API requests. Keep it safe and use it only in secure backend environments. Find your API key in ‘My Account’ under ‘Developer settings’.

Adding PDFs as Sources πŸ“š

To chat about a PDF, it needs to be added to ChatPDF as a source.

You can do this in three ways:

  1. Upload the PDF manually on
  2. Add a PDF from a public URL via API
  3. Upload a PDF file from your device via API

Remember, your PDFs are limited to 2,000 pages or 32 MB per file.

Chats with PDFs πŸ’¬

Want to chat with a PDF?

Use the chat endpoint with a source ID and an array of messages. Each chat with ChatPDF API is independent, so include all relevant messages in one request as previous messages to the same source won’t be recalled.

Adding PDF Manually πŸ–±οΈ

You can use a PDF with the API after uploading it to

Open the chat and get the source ID from the URL bar.

The source ID will look something like this: cha_zNXgrtLfhbFw7KabJgE1.

Adding PDF via URL 🌐

If your PDF file is publicly accessible, you can easily send it to ChatPDF using the endpoint POST This returns a source ID. You can use this to interact with the PDF file.

Adding PDF via File Upload πŸ“

You can upload a PDF to ChatPDF as a multipart form data through the endpoint POST You’ll get a source ID to use for interactions.

Chatting with a PDF πŸ—¨οΈ

To send a chat message to a PDF file, use the endpoint POST with its source ID. You can ask a single question or a follow-up question.

Referencing Sources πŸ“–

Use the ‘referenceSources: true’ field in the request body to include references to PDF pages used to generate a response.

Streaming Response 🌊

For word-by-word responses, include the ‘stream: true’ field in the request body.

Deleting PDFs πŸ—‘οΈ

To remove one or multiple PDF files from ChatPDF, use the source IDs and the endpoint POST

Feel free to check out the example code snippets provided for each endpoint to see them in action!


But What Is ChatGPT?

ChatGPT is a sophisticated artificial intelligence model developed by OpenAI, designed to generate human-like text based on the input it’s given.

The “chat” in ChatGPT denotes its conversational capabilities – it can generate text that follows a back-and-forth dialogue, like in a chat or a conversation.

It can answer questions, write essays, summarize text, and even create poetry or tell jokes.

Its ability to understand and generate text makes it a powerful tool for a variety of applications.

In the context of ChatPDF, the tool leverages the power of ChatGPT to interact with and extract information from PDFs.

By asking questions, users can navigate the content of a PDF document in an interactive and intuitive manner, as if they were having a conversation with the document itself.

How Does ChatPDF Work?

ChatPDF is a remarkable tool built on top of the ChatGPT language model.

In simple terms, here’s how ChatPDF works (Don’t quote me on this one, this is just how it roughly works, but there might be additional details I’m missing.):

  1. You upload a PDF to ChatPDF.
  2. The tool extracts the text from the PDF so that ChatGPT can understand it.
  3. Once you ask a question, ChatPDF uses ChatGPT to search through the translated text and find answers.
  4. It then formulates a human-like response, providing you with the exact information you need.

You might wonder why so many great AI-powered tools exist all of a sudden.

The reason is simple.

AI has been progressing at a rapid pace. Technologies like ChatGPT are available for startups or anyone else to use and experiment with.

This made it feasible for tools like ChatPDF to utilize this technology to offer the innovative solutions they do today.

Wrap Up

ChatPDF πŸ“š is an AI-powered game-changer, transforming the way we engage with PDFs.

It’s a time-saver ⏱️, offering precise answers from complex documents in seconds.

It’s not perfect – the UI can stick, and lengthy PDFs can challenge it.

But overall, it’s a strong tool, helping you breeze through PDFs, but remember, always double-check the facts when it’s crucial πŸ•΅οΈβ€β™€οΈ.

My verdict: give it a go! It’s a boon for students πŸŽ“, researchers πŸ”¬, and professionals πŸ‘©β€πŸ’ΌπŸ‘¨β€πŸ’Ό alike. πŸ‘πŸš€

The best part? It’s free to use. πŸ™‚

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