Compress PDF
A lighter file, when possible. Your original quality stays intact.
Your files never leave your deviceA fresh start for your files
Drop PDFs here, or choose from your device.
30 MB per file · 80 MB total · One PDF at a timeLossless optimization only. Images keep their quality, and already optimized PDFs may not shrink. We return your original if it is smaller.
A few useful things to know
Are my files private?
Yes. All document operations run locally in your browser. We don’t upload your files, and files are not saved between visits. Close or reload the page to clear the workspace.
What are the file limits?
Up to 30 files, 30 MB per file, 80 MB combined, and 1,000 PDF pages per result. Mobile devices may run out of memory sooner. Try smaller batches if processing fails.
What should I expect from this tool?
Lossless optimization can reduce PDF structure overhead. It does not downsample images, so already optimized PDFs may not shrink. If optimization doesn’t help, you get the original file.