The private, offline-first
PDF toolkit

Merge, split, compress, encrypt, reorder and annotate your documents, fast. It runs entirely on your machine, so files never leave your device. Free to start — the viewer is free forever, and founding members get full Pro free for 6 months. An AI-powered cloud version is in the works.

Get it free on the Microsoft Store

See plans & pricing →

Choose the right version for you

We offer two distinct experiences tailored to your privacy needs and performance requirements.

Desktop Version

Free to start · Pro & Team plans

Runs entirely on your local machine, guaranteeing absolute privacy — your files never touch the internet. The viewer is free forever; Pro and Team subscriptions unlock advanced editing and export.

✓ Zero data collection
✓ Free viewer + 6 months of Pro for founding members
✓ Works fully offline

Cloud Version

Premium · Coming Soon

A separate cloud tier in development. It will add advanced AI capabilities powered by heavier infrastructure, and because running cloud APIs and large AI models carries real server costs, it will be offered as its own paid subscription.

✓ Advanced AI document chatting
✓ High-speed cloud processing
✓ Cross-device synchronization

Everything you need, nothing uploaded

A full document workspace, running on-device. Every operation happens locally on your machine, no file is ever sent to a server.

Merge & Reorder

Combine PDFs in a dual-pane, drag-and-drop workspace and reorder pages from a thumbnail sidebar.

Split & Extract

Visually select and pull out exactly the pages you need, then download them as a new document.

Lossless Compression

Shrink file size while keeping quality intact — processed entirely on your machine.

Encrypt & Protect

Add 128-bit user and owner passwords to lock documents down before you share them.

Annotate & Edit Metadata

Mark up pages and view, edit, or scrub Title, Author, Keywords and other document metadata.

Bookmarks & Bates

Organise with bookmarks and apply Bates numbering for legal and professional workflows.

For developers & agents

The same engine, wherever you build

LumvalePDF is built on one on-device engine, exposed as a JavaScript/TypeScript SDK, a command-line tool, and a local MCP server, so your own apps and AI agents can run PDF operations locally, without a server.

Talk to us about integrating the engine

Ready to take control of your documents?

A fast, private PDF toolkit that runs entirely on your machine, your files never leave your device.