Compress PDF
Reduce PDF file size. Pick a preset — higher compression means a smaller file with reduced image quality.
Drop a PDF here or click to upload
Max 50.0 MB per file
About this tool
Reduce PDF file size so documents fit email attachment limits and upload faster. Choose from three compression presets and see a before/after size comparison — processed locally in your browser.
- Light, Balanced, and Maximum presets
- Before/after size comparison
- Honest feedback when already optimized
- No quality loss on text-only PDFs
How to compress a PDF
Upload your PDF
Drag and drop the PDF you want to shrink, or click to browse. Files up to 50MB are supported.
Pick a compression level
Choose Light for best quality, Balanced for everyday use, or Maximum for the smallest file.
Compress
Click Compress PDF — pages are re-encoded right in your browser with no upload.
Compare and download
See the before/after size comparison, then download the smaller file.
Compress PDF — frequently asked questions
How much smaller will my PDF get?
It depends on the content. Image-heavy PDFs (scans, photos) often shrink by 50–90%. Text-only PDFs are already compact, and the tool will tell you honestly when compression wouldn't help instead of degrading your file for nothing.
Does compression reduce quality?
Compression re-encodes page images at the quality level you choose. Light keeps quality very close to the original; Maximum trades visible sharpness for the smallest size. You always see the result before deciding to keep it.
Is my PDF uploaded during compression?
No. The entire pipeline — rendering, re-encoding, and rebuilding the PDF — runs in your browser. Your file never leaves your device.
Why would I compress a PDF?
Smaller PDFs fit email attachment limits (often 10–25MB), upload faster to portals and forms, and take less storage space — useful for scanned documents, portfolios, and reports.