PDFelement: PDF Editor, Scanner
Edit, Convert, Annotate PDF
Edit, Annotate PDF

Is your PDF too large? Do you need to reduce its file size to optimize for sharing or storing? You can use an AI PDF compressor to do that effectively and efficiently. For best results, you need to use one of the top choices on the market. Wondershare PDFelement, a feature-rich PDF solution, is one of them. But besides this, what else can you use? That is what this article covers.

Below are the top 5 AI PDF compressors you can find on the market.

In this article
    1. Wondershare PDFelement
    2. PDF.ai
    3. PDFgear
    4. DocHub
    5. SEO Magnifier
  1. Comparison Table

Part 1. Top 5 AI PDF Compressors

Select any of these 5 tools. They will not disappoint you.

1. Wondershare PDFelement - Best Desktop AI PDF Compressor

wondershare pdfelement simplified by ai

Rating on G2: 4.5 / 5 stars - 584 reviews


Yearly Plan - $79.99

2-Year Plan - $109.99

Perpetual Plan - $129.99

  • Wondershare PDFelement's AI helps you quickly find and activate the compressor.
  • It offers three different compression levels.
  • Wondershare PDFelement lets you compress PDFs in batches.
  • The full-featured Wondershare PDFelement is not free.

Wondershare PDFelement is known as one of the best and most effective PDF solutions. Its impressively wide array of useful features makes it a very attractive option. For instance, Wondershare PDFelement offers a strong PDF compressor. You can select between low, medium, and high compression levels, allowing you to select how much will be cut from the file size and quality.

Furthermore, Wondershare PDFelement offers batch processing. That means you don't need to import and compress PDFs one by one!

It would not be an AI PDF compressor without AI integration. Wondershare PDFelement has an AI assistant called Lumi. You can ask Lumi how to compress a PDF. Besides writing a guide, Lumi will also present you with a button you can click to activate the compressor. It streamlines your workflow!

Here is a demonstration of how to use this AI PDF compressor:

How To Compress PDF Using Wondershare PDFelement With the Help of AI

  1. Launch Wondershare PDFelement and open the PDF that you want to compress.
  2. Click the AI Sidebar button on the toolbar at the right of the interface.

wondershare pdfelement ai sidebar button
  1. Type "How to compress PDF?" in the message box and send it.
asking lumi how to compress pdf
  1. Lumi will write instructions. You can read this to learn how to compress the PDF. At the bottom of Lumi's response is a list of buttons you can click to activate the necessary features. Click Compress PDF.
opening pdf compressor from ai sidebar
  1. The Compress window will pop up. Optionally, click Add file to add more PDFs to compress.

wondershare pdfelement compress pdf window
  1. Select a Compress Option. Please remember that the higher the compression, the lower the file size and quality of the output.
  2. Select an Output folder and click Apply.

User Review: Abin G. G2:

Wondershare PDFelement is an excellent software for managing PDF documents. It has many more features than the typical Adobe PDF reader. With PDFelement, you can read and create PDF files.

With the Convert PDF feature, you can convert PDF files into Word documents. It often comes in handy. It also has ocr feature, which helps us to quickly edit PDF files. You can also compress PDF files using this tool to reduce the size of PDF files. It is useful, especially when you scan documents and convert them into PDF files. Overall, it is a good, useful tool to have.

2. PDF.ai - A Straightforward AI PDF Compressor

pdf ai compress pdf user interface


Monthly Premium - $15

Yearly Premium - $99

  • You can access the PDF.ai AI compressor on any device.
  • It allows you to select from 3 different compression levels.
  • The output file gets auto-downloaded.
  • Batch processing is not available.
  • While web apps are very accessible, they aren't as stable and secure as desktop apps.

PDF.ai is an online platform that offers PDF solutions. One functionality it provides you is a PDF compressor. The AI-powered compressor allows you to select between three compression levels. Once the compression is done, the output will be automatically downloaded. The catch is that it does not offer batch compression. You need to compress your PDFs one by one.

3. PDFgear - Best Free AI PDF Compressor

pdfgear compress pdf user interface

Rating on G2: 4.5 / 5 stars - 2 reviews

Price: Free

  • PDFgear offers batch compression.
  • You can select a different compression level for each PDF in the batch.
  • You can tell the AI Copilot what to do.
  • PDFgear is 100% free.
  • The AI Copilot takes a bit of time to load.

Are you worried about the cost of the AI PDF compressor? If so, you should give PDFgear a try. It is a full-stacked desktop PDF solution. It offers an AI Copilot that you can give instructions to. For instance, you can tell it to compress the PDF, and the AI will execute the task. PDFgear also offers batch compression, making it a very excellent choice.

User Review:

A Verified User in Computer Software on G2:

1 - I liked the crop pdf and compress pdf options. It quickly helps me to remove unnecessary data from pdf and reduces the pdf file size.

2 - Easy to organize pages from the pdf files as required.

3 - Most of the options are provided to convert PDF to another format.

4. DocHub - A Very Cost-Effective AI PDF Compressor

dochub compress pdf user interface

Rating on G2: 4.8 / 5 stars - 128 reviews


Pro Monthly - $14

Pro Annual - $120

  • ChatGPT powers the AI compressor.
  • It has high accuracy and speed.
  • You can use the tool for free.
  • The free version has limited capabilities.
  • There is a 25 MB file size limit.

DocHub is a tool that has already proven its reliability. Like other tools, it has become better with AI integrations. The ChatGPT-powered AI compression tool is amazing. It offers high processing speed and great accuracy. Another great feature is its integration with DocHub's cloud storage; you don't have to have the PDF on your device. As an online tool, you can also access it from any device.

User Review:

Rachel L. on G2: I love that it is user-friendly, easy to use, convenient, and affordable. I have recommended this to all my coworkers; they all use it and love it!!!!!!!!!!!!!!

5. SEO Magnifier - A Fantastic AI PDF Compressor with Content Generative Capabilities

seo magnifier pdf compressor user interface

Price: Free

  • You can use this PDF compressor for free.
  • It has Google Drive and Dropbox integrations.
  • SEO Magnifier's AI is not involved in the compression process.
  • You can only process one PDF at a time.
  • You can't choose a compression level.

Admittedly, SEO Magnifier's AI does not have anything to do with the compressor. Still, it is a compressor with AI integrations. It can spin or rewrite the PDF's contents and can even generate content for the PDF. After editing, you can use its compressor to reduce the file size. In combination with its Google Drive and Dropbox integrations, SEO Magnifier's AI and Compressor tools can lighten your workload.

Part 2. Comparison Table

Here is a table comparing the five options.

Price G2 Rating: Best AI/Compressor Features Limitations
Wondershare PDFelement

Yearly Plan - $79.99

2-Year Plan - $109.99

Perpetual Plan - $129.99

4.5 / 5 stars - 584 reviews Wondershare PDFelement's AI assistant can activate the compressor tool from the AI Sidebar. The compressor offers batch processing and three different compression levels. Wondershare PDFelement's AI is not involved in the compression process itself.

Monthly Premium - $15

Yearly Premium - $99

N/A The compressor is AI-powered, promising high processing speed and efficiency. It also offers three compression levels. It does not offer batch compression.
PDFgear Free 4.5 / 5 stars - 2 reviews PDFgear's AI Copilot can compress PDFs on command. This tool also offers batch processing and different compression levels. The AI Copilot loads quite slowly.

Pro Monthly - $14

Pro Annual - $120

4.8 / 5 stars - 128 reviews The ChatGPT powered compressor has high performance. It has also integrations with cloud storage systems. There is a 25 MB file size limit.
SEO Magnifier Free N/A The compressor is free and the AI can help you edit the content before compressing. The AI is not involved in the compression process itself.


AI PDF compressors are the answer to your PDF file size problems. These will allow you to send PDFs that used to be large through emails. Likewise, they can help you clear storage space.

Out of all your options, Wondershare PDFelement is the most worth it. Why? Because it is a powerful PDF solution with a plethora of useful features. You will not only get AI and compressor features. Wondershare PDFelement also provides you with a PDF editor, converter, and more!

Audrey Goodwin
Audrey Goodwin Apr 24, 24
Share article:
12 years of talent acquired in the software industry working with large publishers. Public speaker and author of several eBooks on technical writing and editing.