How to Reduce PDF File Size on Mac.

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Learn how to reduce PDF file size on Mac and make it easy to send PDFs of varying sizes.

PDF documents are easy to share and access from any type of computer. However, you might find that large PDF files are difficult to share by email. This guide will show you how easy it is to compress your large PDF documents into smaller file sizes.

You’ll learn how to make a PDF smaller on a Mac desktop or MacBook by using a simple, powerful Adobe online tool.

What you’ll learn

How to reduce PDF file size on Mac.

You can easily make a PDF smaller on a Mac by using Adobe Acrobat Pro. The subscription software has a range of features which allow you to get the most from your PDFs. You can use it to reduce the size of any PDF in just a few simple steps.

  1. Open Adobe Acrobat Pro > Tools
  2. Open the Optimize PDF tool
  3. Select the PDF you want to make smaller
  4. Click Reduce File Size in the top menu
  5. Set compatibility > click OK
  6. Name and save your new file.

How to compress a PDF on Mac with preview.

Different operating systems have their own PDF readers. For Mac computers, it uses software called Preview, which comes pre-installed on Apple computers. In a few steps, your PDF file size can be changed on Preview:

  1. Go to the Preview app and open the PDF you want to compress.

Screenshot of PDF open in Preview on Mac

  1. Choose File > then Export.

Screenshot of PDF open in Preview on Mac with Export highlighted

  1. Do not choose Export as PDF.
  2. Select the Quartz Filter pop-up menu, then choose Reduce File Size.

Screenshot of PDF open in Preview on Mac with Reduce File Size highlighted

Online PDF compressor for Mac

If you are unable to download the software, you can easily compress a PDF file online using the Adobe Acrobat online PDF compressor. It takes just three steps:

  1. Launch your internet browser (Apple’s default is Safari). Navigate to the Adobe Acrobat online PDF compressor.

Screenshot of Compress PDF for Mac

  1. Click the Select a File button and locate your PDF file. You can also simply drag and drop your document into the Compress PDF field.
  2. You’ll get three options for compression size. The PDF compressor will also show you exactly how much will be shaved off the file size.

Screenshot of compression options

  1. Once the compression is complete, download your compressed PDF file.

Work even more productively with your PDFs. Try Acrobat Pro and find out what more you can do. Compress large PDFs using the Acrobat online PDF compressor.

Frequently asked questions.

What is PDF compression?

A PDF compression is the process where a file is made smaller and can help with the storage and sending of larger PDFs. It’s a great way to make a file easier to send over email, for example.

Does a compressed PDF lose quality?

A PDF shouldn’t lose quality if you have the setting correct when you compress it. With Adobe Acrobat, the software will balance file size with quality, so the content stays exactly how you’d want it.

Is Adobe Acrobat free?

Yes, Adobe Acrobat Reader is free. Adobe Acrobat Standard and Adobe Acrobat Pro are premium editions. The paid versions unlock even more features, including full convert and edit abilities, advanced protection, and more.