Reduce PDF Size Online — Free & Unlimited
Overview
Large PDFs slow down uploads, clog inboxes, and fail portal size limits. PDF Mavericks reduces PDF size directly in your browser — no software to install, no account to create, and absolutely no per-file limits. Whether you have one PDF or fifty, you can compress them all for free.
How to Use This Tool
Drag and drop your PDF onto the compression tool. Pick a compression level and click compress. The tool shows you the resulting file size before you confirm the download. If you want a smaller output, increase the compression level and try again.
Ready to get started? It's free, no registration required, and your files never leave your device.
Compress PDF →Frequently Asked Questions
Is there a limit on how many PDFs I can reduce?
No. PDF Mavericks has no daily limits or file count restrictions. You can reduce as many PDFs as you need, completely free.
Why is my compressed PDF still large?
Some PDFs — especially those with many full-page scanned images — have a lower compression ceiling. Try splitting the PDF into sections or reducing the image resolution before compressing.
Are my files safe when I reduce PDF size online?
Your files never leave your device. All processing happens locally in your browser using JavaScript and WebAssembly — nothing is sent to any server.