Reduce PDF size with clear quality choices
Choose compact mode to preserve text and links, or use image-based quality choices for a smaller result.
How it works
- Open your PDF and note its original size.
- Choose compact mode to retain PDF text and links, or an image-based quality option when those features are less important.
- Process the file, compare the sizes and inspect small text and images before downloading.
Compression depends on the source document. Compare the output size and inspect its quality before downloading. Image-based modes can remove selectable text and links.
When to use this tool
Prepare attachments for a portal or email size limit. A PDF that already contains optimized images may not become smaller.
What to check before sharing
Image-based modes rebuild pages and can remove selectable text, links and forms. Check readability at normal zoom. Keep the original if the result is larger or the quality is insufficient.
Supported files
Compact mode keeps text and links; image modes remove text search, links and forms. Savings depend on the document.
Inputs: PDF. Performance depends on your device. Download important work before closing the browser; local storage is not a backup.
Troubleshooting
If the file will not open, check it in another PDF reader. If it is password-protected, use Remove a PDF password with a password you know. For scans that need selectable text, run Make a PDF searchable first.
Common questions
Is compression lossless?
Compact mode retains PDF content. Image-based modes can lose detail and document features.
Why is the result not smaller?
The source may already be optimized. Reduction depends on its content and the selected mode.
Which files can I use?
Supported inputs: PDF. Compact mode keeps text and links; image modes remove text search, links and forms. Savings depend on the document.
Is this free?
Core tools require no account or subscription and add no watermark.
Do my documents leave my device?
Document processing runs in your browser. PDF Studio does not upload document files. Explicitly saved drafts and My files remain in this browser until deleted. Read aloud may use network-backed browser voices.