PDF Masker - Secure Redaction

Redact keywords in PDFs securely and offline. Quickly remove sensitive text and mask private information before sharing, with no internet required.

Protect your sensitive information before sharing files with others. PDF Masker is a powerful security tool that lets you search and black out specific keywords across your PDF documents automatically.

Import any PDF directly from your device using the Share menu. Enter your target keywords, and the app instantly hides matching text so you can send your documents safely.

You can choose to export your final file as a searchable text-based PDF or as an image-based PDF. The image-based option is perfect when you want to permanently erase underlying text data so it can never be copied or recovered.

Key Features

• Smart Bulk Redaction: Enter a keyword and automatically mask every single match across the entire document.
• Multiple Keywords Support: Separate multiple terms using spaces or commas to clear different pieces of data at once.
• 100 Item History Tracker: Saves up to 100 of your frequently used keywords so you can reapply them with a single tap.
• Custom Redaction Colors: Change the color of your redaction blocks from classic blackout to white or any custom tone.
• Flexible File Loading: Easily load files from your system file picker, in-app web browser, or straight from other apps via the Share extension.
• 100 Percent Offline Security: All processing happens locally on your phone or tablet. Your private and confidential documents are never sent to external servers.
• Clean and Fast User Interface: Designed to be clean, fast, and simple for everyone, with no complex setup required.

Whether you are hiding account numbers, blurred names, personal addresses, or sensitive corporate contracts, PDF Masker helps you prevent data leaks on the go.