Your PDF tools,
one click away
28 zero-knowledge PDF tools that live in your Firefox toolbar. Merge, split, compress, edit, redact, OCR — without ever leaving your browser.
Free · Private · Instant
Also available for Chrome →
Three ways to access your tools
The extension meets you wherever you encounter PDFs — in your toolbar, your right-click menu, or right on the PDF itself.
Toolbar Popup
Click the ModernPDF icon in your Firefox toolbar. The full tool grid opens with search — find any tool in under a second.
Right-Click Menu
Right-click anywhere in Firefox for instant access. All 28 tools organized by category in your context menu.
PDF Floating Button
Open any PDF in Firefox and a floating action button appears. One click to edit, compress, or convert.
Everything you need for PDFs
28 professional tools across 5 categories — all accessible from the extension.
Zero-knowledge by design
We didn't build a cloud service with a browser wrapper. Every operation runs locally using WebAssembly. Your files never leave your device.
No Uploads
Files are processed entirely in your browser. Nothing is ever sent to a server — not even temporarily.
Instant Processing
No upload/download cycle. WebAssembly processes your PDFs at near-native speed, right in Firefox.
No Tracking
Zero analytics on your documents. No data collection, no telemetry, no file metadata logging. Period.
Ready to upgrade your workflow?
Install the add-on and access all 28 tools in one click. Free to start, no account required.