Compress PDF
Reduce PDF file size while keeping quality.
or drop PDF files here
Files are processed in your browser and never uploaded.
How to Compress PDF
- 1
Select your PDF files
Click “Select PDF files” or drag and drop into the box above.
- 2
Choose your options
Pick Light for the best quality, Recommended for most documents, or Strong for the smallest file. You can compress several PDFs at once.
- 3
Download
Run the tool, check the result and save it to your computer or phone. Nothing is ever uploaded.
About Compress PDF
Make PDFs smaller for email and uploads. Photos and scans are recompressed, while text and vector graphics stay sharp.
Frequently asked questions
Why did my PDF barely get smaller?
Most of a PDF's size usually comes from images. A PDF that is mostly text, or whose images are already well compressed, has little left to shrink.
Will the text get blurry?
No. Text and vector drawings aren't touched; only embedded photos and scans are recompressed. Strong compression can make those images visibly softer.
Are my files uploaded?
No. Compress PDF runs entirely in your browser: your files are processed on your device and never sent to a server.
Is it free?
Yes. It's free, with no sign-up, no watermarks and no daily limits.
Is there a file size limit?
There's no upload limit, because nothing is uploaded. Very large files are limited only by your device's memory.