PDF Compress reduces the size of bulky PDFs so they are easier to email and store. It re-renders each page as an optimized image at the quality you choose, which is especially effective for scanned documents and image-heavy files. Runs entirely client-side with pdf.js and pdf-lib. Heads-up: compressing rasterizes pages, so text becomes part of the image and is no longer selectable.
Your data is processed entirely in your browser. Nothing is uploaded to any server.
Yes, all PDF tools are free and run in your browser.
No. Your PDFs are processed locally on your device and never leave it.
Very large files may be slower because processing happens on your device, but there is no hard upload limit.
No account or signup is required.