About 1 min readPetaMask





Hide the parts of images and PDFs you don't want to show by covering them up and saving to PDF. Just paste, paint, and save. A completely offline and installation-free free tool.
初回投稿
About 1 min readPetaMask
Zero Data Leakage Browser-Based Image Editing Features 🔹Image Scaling 🔹Batch Resize & ZIP Output 🔹Color Correction 🔹Metadata Removal, Text Insertion
![Easy PDF [No Upload Required] Add Signatures and Stamp Images to PDF](/_next/image?url=https%3A%2F%2Frnrwjstsbynqlivkqlce.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fscreenshots%2F45b55c83-1f64-463f-aed7-ab502ebdb6da%2F49220a9a-50ae-4b6a-bcb0-0a22dc02b183.png%3Fv%3D2&w=3840&q=75)
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PetaMask is a simple tool that lets you paint over the parts of images or PDFs you don't want to show, and save them together as an A4 PDF.
In screenshots or documents, hide the parts you want to conceal—names, numbers, faces, anything that bothers you—just by dragging to paint over them. All the hassle of layering shapes and blacking them out is handled in one tool.
▶ What you can do
・Load both images and PDFs, output multiple pages in A4 format
・Paste with Ctrl+V, move and resize by dragging, paint over any area you choose (black, white, or gray)
・The paint is burned into the image, so there's no risk of it peeling off later and revealing what's underneath
▶ Peace of mind
・Completely offline. Data is processed only on this device and never sent anywhere
・No installation needed. Just double-click to launch. Works on Windows / Mac / tablets—anywhere with a browser
・Free / MIT License
For everyone who wants to quickly hide and share parts of screenshots or documents.
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