Compress & make PDFs smallerin seconds — free & private
Plus 25+ tools that run entirely in your browser — merge, convert, edit, sign and more. Your files never leave your device.
All PDF tools
25+ free tools — search or pick a category. Everything runs in your browser.
Why PDF Smaller
Private by design, fast by default, and genuinely free — no account, no catch.
100% private
Files are processed in your browser and never uploaded to a server. Open the Network tab and verify it yourself.
Real encryption
AES-256 and RC4 password protection from a custom engine we built in-house and open-sourced as npm packages.
Instant
No upload or download wait — processing starts the moment you drop a file and runs on your own device.
Unlimited & free
No daily caps, no premium tier, no hidden fees. Use every tool as much as you need.
Big files welcome
Handle PDFs up to 1GB each and batch-compress up to 10 at once — sizes most online tools reject.
Works everywhere
Runs in any modern browser on desktop, tablet, or phone. Nothing to install.
Need image optimization? Try iLoveAVIF — convert and compress images to AVIF for 50% smaller files.
What is PDF Smaller?
PDF Smaller is a free toolkit of more than 25 PDF tools that run entirely in your web browser. Compress a file for email, merge several documents into one, split or reorder pages, convert to and from Word, Excel, PowerPoint and images, edit text, add a password, sign a contract, or run OCR on a scan — without installing software or creating an account.
What makes it different is where the work happens. Most online PDF tools upload your file to a server, process it there, and send it back. PDF Smaller does everything locally on your own device, so your documents never leave your computer. Private files — contracts, IDs, medical records, tax forms — stay private by design, not just by policy.
One toolkit, every common PDF job
- Optimize: compress, resize, and repair PDFs.
- Organize: merge, split, rotate, crop, and reorder pages.
- Convert: PDF to Word, Excel, images, and back again with JPG to PDF and Word to PDF.
- Secure & finalize: password-protect, unlock, watermark, sign, and OCR documents.
Everything is free — no sign-up, no daily caps, no watermarks. To see how the browser-based approach works, read How It Works or browse the guides in our Learning Center.
Frequently Asked Questions
Everything you need to know about PDF Smaller