Compress PDF
Reduce PDF file size for email, web, or storage — right in your browser with no quality loss.
Compress PDF — FreeHow to Compress PDF
- 1
Upload your PDF
Drop the PDF you want to shrink.
- 2
Pick a compression level
Choose Low (fast, safe), Medium (balanced), or High (maximum reduction).
- 3
Download the smaller file
See the before/after size comparison and download the compressed PDF.
Zero uploads
Files are processed entirely in your browser. Nothing is ever sent to a server.
No account needed
Open the editor, do your work, and download. No sign-up, no tracking.
Instant & offline
No waiting for server responses. Works offline after the first page load.
Frequently Asked Questions
How much can I reduce the file size?+
Results vary. PDFs already optimised may see <5% reduction, while PDFs with uncompressed streams can shrink by 30–60%.
Does compressing reduce image quality?+
PDFEdit's compression works by optimising the PDF structure and removing redundant data. It does not re-encode images, so visual quality stays the same.
What is the maximum file size I can compress?+
There is no enforced limit. Performance depends on your device's RAM — files up to 50 MB work smoothly in most browsers.
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