Free Online PDF Tools
Everything you need to work with PDFs — convert images, compress large files, merge documents, split pages and more using PDF99. All tools are completely free, work in your browser, and never require a sign-up.
- ✓ 100% Free
- ✓ No watermarks
- ✓ No limits
- ✓ Works everywhere
All PDF Tools
Why choose PDF99?
Genuinely free — no tricks
No subscription tiers, no premium features locked away, and no watermarks on any output. Every tool is fully functional at no cost, funded by a single ad per page.
Your files stay private
All uploads use SSL encryption. Files are deleted from our servers within one hour. Most tools process files entirely in your browser — nothing leaves your device.
Works on every device
Whether you're on a Windows laptop, a Mac, an iPad or an Android phone, every tool runs in your browser. No installation, no extension, no configuration.
Fast, browser-based processing
We use battle-tested open-source libraries — jsPDF, PDF-lib, PDF.js — that run locally. Speed doesn't depend on a server queue.
More tools coming regularly
Tools marked 'Soon' are in active development. We ship updates regularly.
Built for real-world use
We built the tools we needed ourselves — no limits, no friction, no watermarks. That philosophy drives everything we add.
What is PDF99?
PDF99 is a collection of free online tools for working with PDF files — merge, split, compress, convert, rotate and watermark, all in one place. Each tool runs as a single-purpose page built for one task, so there's no software to install and no account to create. Most tools process files directly in your browser using PDF-lib, meaning your documents aren't uploaded to a server. It's built for quick, everyday tasks: combining reports before a submission, shrinking a file to fit an email attachment, or converting scanned pages into a single document.
How PDF99 works
Pick a tool
Choose from the grid above. Each tool does one job well — no bloated multi-function interfaces.
Upload your file
Drag your file onto the page or use the file picker. Multiple files are supported where it makes sense.
Download the result
Processing is fast. Click Download when it's ready. Your original is never modified, and processed files are deleted within the hour.
How PDF99 compares
See why merging here is faster and safer than the alternatives.
| Feature | PDF99 | Desktop software | Other online tools |
|---|---|---|---|
| Price | Free | Often paid / trial-limited | Free, often watermarked |
| Installation required | None | Yes | None |
| Files leave your device | Never | Never | Usually uploaded to a server |
| Watermarks on output | None | None | Common on free tier |
| File count limit | Unlimited | Unlimited | Often capped (2–10 files) |
| Works on mobile | Yes | Limited / separate app | Varies |
| Setup time | Instant | Download + install | Instant |
Frequently asked questions
Yes, completely. No subscription, no premium plan and no file size cap. Every tool is fully functional without an account. The site is funded by a single advertisement per page.
No. Every tool runs in your browser. Works in Chrome, Firefox, Safari and Edge on desktop and mobile.
Yes. All uploads use SSL encryption. Files are permanently deleted within one hour. Many tools process files locally in your browser — nothing is uploaded at all.
They are permanently deleted from our servers. We don't store, read, analyse or share your files.
No. There's no sign-up, no login and no email required. Open any tool and start using it right away.
No artificial limits. You can upload large files and as many of them as you need. The only real limit is your device's memory and browser performance.
Yes. Every tool is built to work on mobile browsers, not just desktop. There's no separate app to download.
Never. PDF99 doesn't add watermarks, branding or promotional text to any file you create or edit.
All modern browsers, including Chrome, Firefox, Safari and Edge. Keep your browser updated for the best performance and security.
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