Chat with PDF

UPDF AI Assistant lets you chat with PDFs, ask questions, quickly extract key information, and more. Available online and on Windows, Mac, iOS, and Android, it makes reading and analyzing PDFs easier. Follow the steps below to get started.

Part 1. Chat with Your PDF Online

UPDF's AI online assistant is a GPT and DeepSeek powered assistant that allows you to chat with PDF online by writing simple prompts. With UPDF's AI online assistant, you can:

• Summarize the entire PDF or specific pages or content from the PDF.
• Translate PDF content into any language of your choice.
• Explain complex phrases used in the PDF.
• Ask questions about the PDF, such as how many formulas are used in the document, etc.
• Ask for assistance in anything within or beyond PDF, such as ideating, writing, rewriting, and more.
• Chat with multiple PDFs.
• Generate mind maps from the PDF files for visual understanding.
• Convert PDF content into editable files like Word, PPT and Excel.

1. Summarize PDF Content

UPDF AI allows users to summarize the uploaded PDFs content through prompts or highlighting specific page ranges. Here are the steps you can perform for the two ways to summarize PDF text:

Way 1.  Summarize PDF Through Prompt

Step 1: Upload or Drag File to UPDF AI Chat PDF

Begin by opening the UPDF AI online tool, then click the “Click, drag, or paste PDF / Image here” button to upload the PDF you want to summarize.

Step 2. Prompt UPDF AI to Summarize

After uploading the PDF to the UPDF Chat PDF interface, enter your prompt in the text box or tap the “Summarize this File in Detail” prompt and click “Send” to proceed.

Way 2. Summarize Through Summarize Option

Step 1. Navigate the Summarize Option

If the generated output isn’t suitable and you need a more concise version, simply click the “Summarize” icon.

Step 2. Adjust Page Range of Summary Required

Next, choose the page range of the PDF document to specify UPDF AI about from where to where you require a summary of. Finally, you can “Copy” the results to your device or have the AI assistant “Keep Summarizing.”

2. Translate PDF Content

Just like summarization, UPDF's AI Online Assistant allows you to translate PDF content into different languages, such as German, Italian, Chinese, Hindi, and more. Here's how to chat with PDF using UPDF's AI online feature to translate content:

Step 1. Enter the Prompt for Translation

Upon uploading the PDF file, press the “Translate this File” button or write prompt and then hit “Send” to get the translation.

Step 2. Select the Translation Options

After the initial prompt, tap on the “Translate” icon. Afterwards, simply choose from either "Side-by-side Translation" or "Page-by-page Translation".

Step 3. Select Language and Page Range

Moving forward, choose your desired language, set the page range, and click “Translate.” Once the translation is generated, you can review it and copy the results to your clipboard for later use.

3. Explain Difficult Phrases Used in the PDF

Suppose that you want to use AI for healthcare purposes. For example, you want to analyze a medical report and chat with PDF free to understand the medical report results.

UPDF's AI online assistant allows you to chat with PDF in a human-like manner and ask it to explain your doubts.

4. Ask Questions About the PDF

To further interact with your PDF documents on UPDF AI online, you can type in questions regarding the uploaded PDF topics to get a better understanding on the context. Upon uploading the PDF, you can simply type any question you want to clarify the doubts about the PDF content.

Users get the ability to upload images to the chat and further question the integrated AI assistant about the content.

5. Chat with PDF to Rewrite

Beyond chatting with PDF to summarize, translate, or explain content, you can also use UPDF's AI online assistant to help rewrite existing content. You can simply import the PDF and prompt the AI to rewrite the whole thing or some text of the document.

This way, you can simply upload any PDF and then ask an AI assistant to rewrite the content.

Alternatively, you can also use it to expand your existing writing, such as:

Prompt: Enhance my script for a tutorial video on advanced photo editing techniques. Add compelling examples, refine technical explanations for clarity, and suggest ways to maintain viewer engagement throughout.

6. Chat with Multiple PDFs

If you want to summarize, translate, or ask any questions related to multiple PDF files, you can use UPDF AI Online for this as well. Simply upload the files and follow these steps to get the job done.

After accessing UPDF AI online, tap on the “Click, drag, or paste PDF/Image here” button to import multiple files at once.

Upon importing the files, write your desired prompt or select any of the default prompts before hitting the “Send” icon.

Moving forward, you can easily get the summaries, translation, explanation of all these files at a time. Moreover, you can even chat with every uploaded PDF at once to save time and better productivity.

7. Create Mind Maps from PDF

With its PDF to Mind Map feature, you can simply upload a PDF in your browser and generate a mind map in seconds. The online tool breaks down large documents into clear visual branches. While using this tool, you can zoom in and out and even view the mind map in full screen.

To convert PDFs into mind maps, upload the PDF into the UPDF AI tool on your favored browser. Once on the interface, tap the Mind Map icon and select the PDF you want to convert.

Now, set the page range to determine the content whose mind map you want to create. Afterwards, simply hit the Generate button to get the visual representation of your content.

Once the mind map is created, you can simply download it or can open the image in the new tab. You even get the option to zoom in or out the mind map for a better reading experience.

8. Convert PDF to Word, Excel, and PowerPoint

Using the UPDF AI’s PDF converter, users can convert PDFs into fully editable Word, Excel, and PowerPoint documents while maintaining layouts and images. IT even supports batch conversion, OCR for scanned files, and fast processing for large documents.

Simply upload the PDF file in the chat mode and tap the Convert PDF icon to proceed. Now, select the desired conversion option, such as PDF to Word, from the new menu.

Moving forward, select the uploaded file and hit the Convert PDF button to get the converted document.

That's how UPDF's AI online assistant serves as your virtual assistant when consuming PDFs. To learn more on how to use AI assistants for different activities across industries, check out our AI how-to video page.

Part 2. Chat with Your PDFs in the UPDF App

The UPDF AI assistant is also built into the UPDF app, which is available on Windows, Mac, iOS, and Android—so you can access it across all major platforms.

For Desktop

To access UPDF's AI assistant on the desktop app, follow these simple steps:

Step 1. Open your PDF in UPDF, then click the “UPDF AI” button in the upper-right corner to open the AI assistant.

Step 2. Click the “Ask PDF” card or the “Ask PDF” icon on the right sidebar to enter Ask PDF mode.

Step 3. Select your preferred response language from the drop-down menu, then click “Chat with PDF” to let AI read and analyze your document.

Step 4. After clicking “Chat with PDF,” UPDF AI automatically generates a summary of the entire PDF in the “Ask PDF” panel.

The “Ask PDF” interface lets you ask questions about your PDF and manage your conversations:

• PDF Context: Use the page-range drop-down to choose “Current Page,” “Entire Document,” or “Select Pages” to control which pages AI uses.
• Type your prompts: Enter your questions or instructions in the chat box.
• “+” menu: Add an “Image” or “Screenshot,” or access “General Assistant,” “Resume Assistant,” “Contract Assistant,” “Academic Assistant,” and “Financial Assistant.”
• Switch to DeepSeek: Click “Think” to switch to DeepSeek.
• New chat: Start a new conversation.
• Chat history: View previous conversations.
• Clear Conversation: Clear the current conversation.

For Mobile

Follow these steps to access the UPDF AI feature on the mobile application.

Step 1. Start the process by downloading and launching the UPDF app.

Step 2. Now, tap the Plus icon on the main screen and pick Files within the Import From section to import your desired PDF.

Step 3. Once the PDF opens, hit the UPDF AI icon on the top right of your screen. Within the next screen, hit the Get Started button to let this tool analyze your file before you can start chatting.

Bonus Tip: Copy a Specific Area of Your PDF as an Image or Text and Use It With a Custom AI Prompt

Step 1. Right-click and drag over the PDF area you want to select. In the floating toolbar, choose “Copy as Image” or “Copy as Text.”

Step 2. Paste the copied image or text into the “Ask PDF”/"AI Chat" chat box. Enter a custom prompt, such as “How should this be interpreted?”, then click “Send” to get a response.

For detailed instructions on how to use UPDF AI to explain, translate, or summarize PDFs, refer to the respective user guides: Explain PDFs, Translate PDFs, and Summarize PDFs.