Reduce PDF File Size
Make a heavy PDF dramatically smaller so it's faster to send, upload and store. Nothing is uploaded — everything runs on your device.
🔒 Processed entirely on your device — your file is never uploaded.
Shrink big PDFs without an upload
Scanned documents and image-heavy PDFs are often several megabytes — too big to email or upload. SafePDF re-compresses the images inside your PDF right in your browser, cutting the file size while keeping it readable. Nothing is sent to a server.
Best results on scans and photos
Compression works best on PDFs made from scans, screenshots or photos, where the images dominate the file size. Text-only PDFs are already small and may not shrink much — that's normal and honest.
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FAQ
How do I reduce pdf file size?
Add your file above and click the button — the result downloads instantly, processed privately in your browser.
Is it free and private?
Yes. It's completely free with no watermark, and your files are never uploaded.
Do I need to install anything?
No. It works in any modern browser on desktop or mobile.