Hi! I’m Shawn Jordison and welcome to The Accessibility Guy blog. In today’s post, we’re learning how to compress a PDF in Adobe Acrobat Pro. Compressing PDFs makes large files quick and easy to share. You can reduce a PDF size by 20% to 30% without compromising quality or readability.
Video Guide
Following this guide will teach you how to customize Adobe’s compression settings so you always satisfy upload file size limits.
Check the current PDF file size
- Open your PDF and click the Menu Button.
- Choose “Document Properties.”
- Note your file size.

Open the compression tool
- Go to the Tools Panel and choose “Compress a PDF.”
- Select “Advanced Optimization.”
Customize the compression tool settings
- Choose “Retaining Existing” for compatibility.
- Set “Downsampling” to Off.
- Set “Compression” to Retain Existing for color, grayscale, and monochrome images.
- Click “OK” and save your PDF.

Final thoughts
Try testing different settings for different file sizes. The greater the compression, the greater the impact will be on the quality and readability of your finished product. For example, change “Downsampling” or “Compression” settings on smaller and larger PDFs to gauge your results.
There you have it – you’ve learned how to compress a PDF by customizing the compression settings in Adobe Acrobat Pro.
Remember, I can be your accessibility expert. For more detailed insights, tutorials, and in-depth discussions on accessibility and related topics, don’t forget to check out my YouTube channel: The Accessibility Guy on YouTube. Subscribe for regular updates.
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