Compress PDF
Reduce PDF file size with lossless optimization.
This tool runs entirely in your browser. Your file is never sent anywhere.
The file is rewritten with optimized internal structure and object streams. Text and images are not degraded — this is lossless optimization, not destructive compression.
Frequently asked questions
How much smaller will my file get?
It depends on how the PDF was created. Poorly generated files can shrink a lot; already-optimized files less. The exact saving is shown before you download.
Will quality be reduced?
No. This optimization is fully lossless — every page looks exactly the same.