Compress PDF
Make a PDF smaller by optimizing its photos and structure.
Endless next steps.
Choose a PDF to make smaller
Drop your files here to get started
Or start with a tool
54 tools availableA growing toolbox, with clear limits.
RAW and technical formats are on the roadmap. See exactly what is available today.
How to use Compress PDF
- Choose your file and wait for verification.
- Review the settings and create an export. Your original stays unchanged.
- Preview the result, read any export notes and download it through our direct download service.
Supported inputs and limits
Balanced keeps photos sharp for screens and printing; Strong uses smaller, lower-quality photos. Large JPEG photos are downscaled and recompressed, and the file structure is rewritten compactly. Text and vector graphics are not changed. When a PDF cannot get smaller, you receive it at its original size.
Free use, with a shared allowance
No account is required. Uploads use a rolling 24-hour allowance of up to 4 GB and 50 files, whichever is reached first. New visitors receive a 2 GB allowance when all processing slots are occupied. Downloads do not consume this upload allowance. Read the fair-use policy.
Files are temporary. See how file deletion works, or browse all file tools.