PDF Compress Expert is a Mac OS X utility for reducing the size of PDF files, which compresses PDF file size by optimizing the resolution and compression method of images, removing unused thumbnails and metadata, stripping dead-object and compressing other parts of PDF files. Just drop your file on the panel and it will quickly create a new, compressed PDF file suitable for sending via e-mail or posting on the Web.

Now, Support macOS Sierra.
Rich choices of compression options.
• Support five different PDF compression modes to select.
• Support customize compression mode: You can customize the image sampling and image compression.

PDF documents compressed to the file size you need.
• You can get high quality but small PDF file after compression. For some PDF files, file size can be compressed by 90%.

Compress PDF quickly and easily.
• Support batch compression: Compress multiple documents one time.
• Support drag and drop: You can just drag and drop PDF files to the interface of the application.

What’s New

Version 3.0.0

1.Support macOS Sierra.
2.Fix a crash bug.

Ratings and Reviews

Totocusita ,

Seriously the app just work and is free so enjoy

I’m not familiar with the previous versions, but at least the latest version of this app works perfect. I reduced a 13Mb to 1.1Mb quickly and very smoothly. I don’t make reviews quite easy, but in this particular case I strongly recomend this app. As my geek friend of mine recommended me, just try it and if works great for you, otherwise you can erase it quite easily. So far I’m happy with it so I’m going to keep it. And is free!!!

Marja E ,

Works Well With Some Pdfs, Badly With Others

I originally used this to try to repair pdfs which Preview had damaged and bloated. It wasn't able to do that, and converted one to a plain gray blur. I have also used this to compress pdfs from the Internet Archive. It can sometimes do that. Depending on your requirements, this could be anything from 1 star to 5 stars.

zhinka2 ,

Works quickly and is very effective

I used this to compress a 23MB pdf file. It quickly compressed it to 1.2MB, and I was able to email the file. The compressed file still displayed in very high quality.


1.7 MB
OS X 10.8 or later, 64-bit processor
Age Rating
Rated 4+
© @ PowerfulPDFSoft Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer