Compress PDF
Reduce PDF size for free. Keep your original and compare pages before downloading.
How to compress a PDF
- Choose one PDF up to 50 MB and 1,000 pages.
- Choose Lossless or Smaller file, then Compress PDF.
- Preview original and compressed pages and download your result.
Frequently asked questions
Does compression reduce quality?
Lossless optimizes PDF structure without intentionally reducing image quality. Smaller file compresses supported images further; image quality may decrease. Preview before downloading. Text and vectors are not rasterized. PDF/A and PDF/X conformance is not guaranteed.
Why is my PDF not smaller?
Already optimized PDFs may not shrink. If no verified smaller result is available, your original stays available and no new file is created.
Which files are supported?
Choose one unlocked PDF. Signed originals, interactive forms, bookmarks, attachments and active or unverifiable structures are rejected. Complex documents may exceed processing limits.
Privacy and limits
Your original is never overwritten. Files are processed in a temporary server workspace with a 200 MB and 64-file limit. Download before expiry.