Forum Discussion
How to minimize pdf file size on mac without losing quality?
I need to reduce the file size of a few PDFs on my Mac, but I'm struggling to find a method that actually keeps the text sharp and images clear. Most tools I've tried either barely shrink the file or...
You can erase PDF metadata directly using Mac’s native Preview app as a lightweight auxiliary method to how to minimize pdf file size mac by clearing hidden document information.
How to Minimize PDF File Size Mac
- Open the target PDF file in Preview
- Go to Tools → Show Inspector
- Switch to the More Info tab
- Manually delete unnecessary metadata, including the author, title, and other custom information
- Save the modified PDF document
Disadvantages
- The amount of space saved is limited, typically ranging from a few KB to a few MB.
- Embedded images cannot be compressed to achieve a significant reduction in file size.
- Metadata entries must be deleted manually, one by one.
The metadata cleanup process relies entirely on macOS's native software. It does not significantly reduce file size and should be used as a supplementary optimization measure.
ps
- If you need to significantly reduce the size of a PDF file, simply deleting metadata is not a substitute for image compression.
- Back up the original PDF file before deleting the metadata.