The Best PDF AI Tool of 2025? UPDF AI Sets the Standard!

Almost every PDF editor is now integrating AI assistant to enhance the user experience. These AI assistants offer various features, such as summarization, translation, interactive chat, and more.

Out of all the PDF AI assistants available today, UPDF AI dominates as the best choice in 2025. It offers unparalleled features missed by many mainstream PDF editors, like Adobe Acrobat AI, Foxit AI, and others.

In this guide, we will uncover why UPDF AI is the best AI tool in 2025 by comparing it with other popular AI assistants for PDFs.

Part 1. General Features of the AI PDF Editors

Now that AI assistants are coming built-in in PDF editors, there are a few general features almost all these AI tools offer. These features include:

• Summarize PDF: Summarize the entire PDF or selective content to extract key insights quickly.
• Translate PDF: Translate PDF content to different languages.
• Chat with PDF: Interact with PDF by asking questions, clarifying content, extracting specific information, and more.
• Proofread/Rewrite Content: Get assistance in proofreading and rewriting PDF or general content.
• Chat Beyond PDF: Human-like conversation on topics beyond PDF.

Most of the above features are offered by popular PDF AI tools, such as Adobe Acrobat AI, Foxit AI, ChatGPT, and similar other PDF editors. However, the interesting thing is that UPDF AI provides more powerful capabilities and unique features.

UPDF AI stands out due to:

• Support for large files and more pages.
• Summarize and translate PDF content by direct selecting.
• Analyze scanned PDF documents by first performing OCR.
• Translate entire documents in any language while preserving original formatting.
• Support for full-size DeepSeek R1 model.
• Chat with images.
• Convert PDF to mind map.
• Chat with multiple PDFs at once (online version).

In short, UPDF AI dominates as the advanced and feature-packed AI assistant for more delightful usage experience.

Head to the next part to learn in detail about UPDF AI and its core features. Or download UPDF desktop/mobile version to try the AI assistant for free and experience its advanced features yourself.

Part 2. 10 Reasons to Choose UPDF AI as Your PDF AI Tool in 2025

UPDF AI is termed the most advanced AI assistant of 2025 due to its many distinguishing features from other mainstream AI PDF editors. Users claim to get a more powerful AI that can assist in more ways than any other AI tool.

Below, we have shortlisted the ten unique features of UPDF AI compared to the AI assistant in other PDF editors or online AI PDF chat tools:

1. Two AI Assistant Modes

UPDF AI provides dedicated AI assistant modes, i.e., Ask PDF and Chat. The Ask PDF mode provides assistance related to the opened PDF. It allows you to summarize, translate, chat with PDF, and convert PDF to mind map. The Chat mode lets you chat beyond PDF. You can use it to chat about any other topic, write new content, brainstorm/ideate, and do more. These distinguishing features provide an easier way to use the AI assistant.

2. Multiple PDF Summarization and Translation Options

UPDF AI provides an enhanced experience in summarizing and translating PDFs. With UPDF AI, you can:

• Translate the entire PDF - this feature is available in "Reader" mode, allowing users to generate a new file with the same formatting and layout for translations.
• Summarize the entire PDF.
• Summarize/translate specific pages.
• Summarize/translate content directly by selecting from the PDF.
• Summarize/translate content using the chat box.

These options provide a more intuitive experience while summarizing or translating PDFs. Plus, many other top-tier AI tools for PDFs miss this option. For example, AskYourPDF just provides a simple chat box from where you have to write the prompts to get summaries or translations. Interested users can also compare UPDF with AskYourPDF to make a more informed choice.

3. Translate the Entire PDF with Original Layout

Another reason to choose UPDF AI is its support for entire PDF translation. It can translate the PDF into your preferred language and generate a new document while preserving the original layout.

To do so, you simply have to open the PDF in UPDF and select the "PDF Translation" button. Pick the translation language and page range and hit the "Translation" button.

Afterward, UPDF AI will generate a new document with your translated text with full layout retention. This feature is not provided by almost any other AI PDF tool, like Adobe Acrobat AI, Foxit AI, etc.

Also Read:

• UPDF AI vs. Foxit AI >>
• UPDF AI vs. Adobe Acrobat AI >>

Hit the below button to install UPDF and try the AI translation feature yourself.

4. Analyze Scanned PDFs

Sometimes, we want to use the AI assistant for scanned PDFs. UPDF and its AI assistant make it a breeze by first letting you perform a quick OCR in seconds and then letting AI access the searchable and editable text.

When you ask the AI assistant to process a scanned PDF, it will show a pop-up asking to perform OCR. You can follow the on-screen instructions to complete the OCR and then use AI to do relevant actions. If we compare that to Foxit AI, ChatGPT, and other AI tools, it is only UPDF that offers this feature.

5. Larger File Size Support

Another feature that makes UPDF AI dominate other AI PDF editors is large file size support. Its AI assistant can handle larger files and more pages. For example, Adobe Acrobat AI can only handle up to 600 pages and 100MB (it requires a subscription to access Adobe Acrobat AI). In contrast, UPDF AI assistant can handle 100-unlimited pages and 100-2GB file size per PDF, depending on the plan.

6. Full-Size DeepSeek R1 Model

UPDF AI is currently the only AI PDF editor that supports the full-size DeepSeek R1 model. This model is exceptional in its reasoning capabilities. If you are reading a complex research paper, you can use the "DeepThink (R1)" option to get a response from DeepSeek R1.

The default AI model in UPDF AI is GPT-4o, but it allows you to switch to DeepSeek R1 whenever you want deep reasoning. To do so, you have to click the "DeepThink (R1)" button and then use the chatbot.

7. Chat with Images

UPDF AI also supports chatting with images. It allows you to upload the image and then ask AI for assistance. You can access this option by clicking the image icon from the chat box, uploading the image, and then asking the AI to extract text from the image, suggest ad content related to the image, etc.

This feature is currently not supported by most mainstream AI tools, like Adobe Acrobat AI, ChatPDF, and others.

8. Convert PDF to Mind Map

The one feature that is enough to justify why UPDF AI is the best is its support for converting PDFs to mind maps. It allows you to generate a mind map of the entire PDF or specific pages to have a visual-based understanding of the content. You can also zoom in/out, download a mind map as an image, and do more.

To convert PDF to mind map:

• Launch UPDF and open the PDF that you want to convert.
• Click the "UPDF AI" icon from the bottom left corner and tap "Get Started".
• Press the "Mind Map" button from the chat box. Select the page range and tap "Generate".

UPDF AI will generate a mind map instantly. Afterward, you can download, copy, or zoom in to the mind map as you want.

Try out UPDF AI now for free and generate a mind map for your PDF right away.

9. Wide Compatibility

UPDF AI is not limited to Windows or the web. It provides compatibility across all four major platforms and the web. You can access UPDF AI on:

• Windows
• macOS
• iOS
• Android
• Web

This makes UPDF AI your go-to assistant anywhere, anytime.

10. Chat with Multiple PDFs Simultaneously

UPDF AI web support chatting with up to 100 PDFs simultaneously. For example, if you are doing research on a specific topic and want to analyze relevant research papers, you can upload them all together in UPDF AI and then use the chat box to chat with them simultaneously.

To access this feature:

• Go to ai.updf.com and sign in.

• Under the "Collections" tab, upload all the PDFs you want to analyze.

• Use the chatbot to interact with the uploaded PDFs.

Currently, UPDF AI is the only AI PDF editor supporting this feature of multiple PDFs chatting. Head to UPDF AI online and try this feature yourself.

Part 3. Comparison Table: UPDF AI vs Other AI PDF Tools

The unique features of UPDF AI genuinely make it a real PDF AI assistant users need. It not only addresses basic needs but offers advanced features crucial in the digital era.

To better understand why UPDF AI is the best, check out the comparison table below, where we have compared UPDF AI with other popular AI PDF tools:

	Features	UPDF AI	Adobe Acrobat AI	Foxit AI	AskYourPDF	ChatPDF
Summarization	Summarize entire PDF
	Summarize PDF by page range
	Summarize using prompt
	Summarize by selecting text directly from PDF
Translation	Translate entire PDF with original layout
	Translate PDF by page range
	Translate using prompt
	Translate by selecting text directly from PDF
Explanation	Explain PDF content using prompt
	Explain by selecting text directly from PDF
Chat Beyond PDF	Ideate
	Write/rewrite
	Proofread
Chart Analysis	General Chart Analysis
	In-Depth Chart Summarization
Convert PDF to Mind Map	Generate mind maps from PDFs
Chat with Images	Prompt-based chat with images
DeepSeek (R1) Model	Deep thinking and reasoning with DeepSeek (R1) model
Scanned PDFs	Analyze scanned PDFs
Chat with Multiple PDFs	Simultaneous multiple PDF chatting
Free Plan Benefits	PDF uploads	5 PDFs	No free version	N/A	1 PDF/day	3 PDFs/day
	PDF size	10 MB/PDF		25 MB/PDF	15MB/PDF	10 MB/PDF
	PDF pages	100/PDF		120 pages	100/PDF	120/PDF
	No. of questions	100		20	50/day	50/day
Pricing	Paid Plans	- Quarterly: $29/quarter; - Yearly: $79/year	- Acrobat Standard with AI add-on: $215.76/year; - Acrobat Pro with AI add-on: $299.76/year	- Monthly: $4.99/month; - Yearly: $49.99/year	- Premium: $143.88/year; - Pro: $179.88/year	- Monthly: $13.99/month; - Yearly: $99/year
Compatibility	Compatible Systems	Web, Windows, Mac, iOS, and Android	Web, Windows, Mac, and iOS, Chrome & Edge Extensions	Web	Web	Web and Windows

Conclusion

As every PDF editor is now integrating AI assistants, it is essential to choose the one that is exceptional in features and performance. That's what UPDF AI promises to offer. The extensive summarize/translation options, mind map generation, chat with images, OCR capabilities, and others reflect why UPDF AI is the best. So, get your UPDF AI subscription now and use the best AI assistant for your documents.