PDF Masker User Manual

PDF Masker is an app designed to easily redact and mask specified text strings across your PDF documents.

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How to Use

1. Open a PDF File
   Select a PDF using the file picker, or share a file from another app (such as Files or Mail) and choose PDF Masker from the share menu.
2. Enter Text to Mask
   Type the text strings you want to redact into the text field.
   To specify multiple strings at once, separate them with spaces or commas (,).
   Examples:
   John Doe Jane Smith (Space-separated)
   secret,confidential,internal (Comma-separated)
3. Apply Mask
   Tap the Mask button to cover all matching occurrences of your specified text strings.
4. Export
   Once masking is complete, tap the Share button to send the PDF to other apps or save it to your files.
   Note:
   You cannot export the PDF via the share button if no characters have been masked.

History

Groups of masked strings are automatically saved to your history, allowing you to easily recall and reuse previously used mask settings.

Settings

You can adjust the following options in the settings:

• Mask Color
  Choose or change the color used for redaction.
• Share as Image-based PDF
  Select whether to convert the output PDF into an image-based format. This prevents underlying text extraction and recovery.
• Remove Ads (In-App Purchase)
  Remove advertisements from the app via an in-app purchase.