PDF Compressor
Reduce PDF file size with three quality presets. See exact before/after savings before downloading.
How it works
- 01
Upload your PDF
Drop a PDF onto the upload area or click to browse.
- 02
Pick a preset
Choose Screen, Balanced, or Print depending on how you will use the file.
- 03
Compress & download
See the before/after size, then download the compressed PDF instantly.
Frequently asked questions
Is my PDF uploaded to a server?
No. The entire compression process runs in your browser. Your file never leaves your device.
Which PDFs compress best?
Scanned documents and image-heavy PDFs compress the most — often 50–80% smaller. PDFs that are mostly text or vector graphics see little reduction because the text is already stored efficiently.
What do the compression presets do?
Screen (smallest): renders at 72 DPI with 65% JPEG quality — ideal for email and web. Balanced: 108 DPI, 80% quality — good for sharing and ebooks. Print: 144 DPI, 90% quality — higher fidelity for printing.
Will text look blurry after compression?
Compression works by rasterizing pages to JPEG, so vector text is converted to pixels. At Balanced or Print quality the result is sharp enough for reading. Use the Print preset if text clarity is important.
Does it work with password-protected PDFs?
No. Password-protected PDFs cannot be read or compressed. Remove the password first, then compress.