Compress PDF

Reduce PDF file size while maintaining quality

Files never leave your deviceNo signup required

Optimizes PDFs by removing metadata, annotations, and consolidating internal structures. For heavy compression of image-rich PDFs, dedicated desktop tools may achieve better results.

Drop a PDF or click to upload

Your file is processed locally - never uploaded

Frequently Asked Questions

How does PDF compression work?▼

PDF compression reduces file size by re-encoding embedded images at a lower quality and stripping metadata. Text and vector graphics remain sharp.

Will compression affect PDF quality?▼

At medium compression, the visual difference is imperceptible for most documents. High compression may show slight artifacts in photographs.

Is my PDF uploaded to a server?▼

No - compression happens entirely in your browser. Your files never leave your device.

How to Use Compress PDF

1Open the Compress PDF tool above - it loads instantly in your browser.
2Enter your data or upload your file. Everything is processed locally on your device - nothing is uploaded to any server.
3Get your results instantly. Copy, download, or share - completely free with no signup required.

Compress PDFis part of BriskTool's collection of free online tools. All tools run entirely in your browser for maximum privacy and speed.