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MGToolbox

Pro In-Browser PDF Editor

Pro Tool100% In-Browser

Edit PDF text with font auto-matching, erase dates and text with the smart healing brush, insert signatures and stamps. 100% private, no cloud uploads.

Drop a PDF to edit, erase, add text, or sign

Pro In-Browser PDF Editor · Eraser · Direct text replacement · Smart healing brush · 100% private

100% In-Browser • Files are processed 100% locally
Zero Data Collection
Files are processed 100% locally
Instant Client-Side Speed
Zero network upload delays
Free & Unlimited
No registration or credit card needed

Pro In-Browser PDF Editor — Smart Healing Brush & Font Auto-Matcher

Why we built this: Most online PDF editors charge $15–$25 monthly subscriptions, trap you with watermarked exports, or send your sensitive financial documents and legal contracts to remote cloud servers. We engineered a professional PDF workspace that executes entirely inside your browser memory using WebAssembly and client-side canvas rendering.

How it works: 1) Drop any PDF file — it opens locally without transmitting a single byte to the network. 2) Use the Font Auto-Matcher by clicking any text to automatically inherit its exact font-family and size, or use the Smart Healing Brush to blend away dates and errors without awkward stark-white rectangles. 3) Add signatures, stamps, or new annotations, and click "Download Edited PDF" for an instant, clean export.

The Smart Healing Brush utilizes Telea-based texture synthesis on canvas, sampling adjacent scanned paper fibers and tint to seamlessly reconstruct backgrounds. Modified pages are re-encoded into compliant PDF byte structures using client-side pdf-lib.

Frequently Asked Questions

Everything you need to know about using Pro In-Browser PDF Editor safely and efficiently.

No. The entire PDF is parsed, rendered, edited, and generated directly in your browser. No files are uploaded to any server.
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