About PDFzelo
Free PDF tools that respect your privacy. Everything runs in your browser — your files never leave your device.
Our mission
PDFzelo started with a simple frustration: every "free" PDF tool wanted your files uploaded to a server, an account created, or a watermark stamped on your documents. We believed there had to be a better way.
Today, PDFzelo offers 130+ professional PDF tools — merge, split, compress, convert, sign, protect, OCR, and more — that run entirely in your browser using modern web technology. No uploads. No accounts. No watermarks. No catch.
How it works
When you drop a file into any PDFzelo tool, it is processed locally on your device using JavaScript PDF libraries. Your documents are never transmitted to our servers, because there is nothing to transmit to — the processing engine lives in the page you already loaded.
By the numbers
- 130+ free PDF tools
- 100% client-side processing
- 0 files uploaded to servers
- 0 accounts required
- $0 — free forever for core tools
Our principles
- Privacy first. Your documents are yours. We architect our tools so we never see them.
- Free means free. No watermarks, no trial limits on core tools, no bait-and-switch.
- Fast by design. No upload queues, no server round-trips — processing starts instantly.
- Open web. Works on Windows, Mac, Linux, Chromebook, Android, and iPhone — no installs.
Contact
Questions, feedback, or partnership inquiries? Visit our contact page — we read everything.