About LuraPDF

Our Mission

LuraPDF exists to give everyone access to professional-grade PDF tools without cost, registration, or privacy trade-offs. Every major task — merging, splitting, compressing, converting, signing, and editing PDFs — should be instant and free.

We built LuraPDF on a single constraint: your files never leave your device. There is no upload server, no cloud processing, and no file storage. When you close the tab, your data is gone.

How It Works

LuraPDF runs PDF processing directly in your browser using WebAssembly and modern JavaScript APIs. When you load a PDF, it is read into memory locally. Operations like compression, merging, and OCR execute on your CPU — not on any server. This architecture means there is no latency from uploads, no file size limits imposed by bandwidth, and no risk of your documents being stored or accessed by a third party.

Open-Source Technology

LuraPDF is built on the shoulders of excellent open-source libraries:

• pdf-lib — PDF creation, modification, and merging
• PDF.js (Mozilla) — PDF rendering and text extraction
• Tesseract.js — 100+ language OCR engine via WebAssembly
• Fabric.js — Canvas-based PDF annotation and editing

Privacy by Architecture

Most online PDF tools upload your documents to a remote server for processing. LuraPDF does not. The browser receives the tool code, and your CPU does the work. No file ever touches our infrastructure.

We use Google Analytics to understand aggregate usage patterns (pages visited, tool usage counts) and Google AdSense to serve ads that fund free access. Neither service receives your PDF files or their contents.

Contact

Questions, bug reports, or feedback? Reach us at [email protected].