Open Mask My File and tap Import. Select a PDF or image file from Files, Photos or any app.
The app scans the document for phone numbers, email addresses, ID numbers and home addresses.
Check the list of detected personal data. Deselect any item you want to keep visible in the shared version.
Tap Mask to apply black bars over the selected personal data fields.
Tap Export to save or share the masked document via email, AirDrop or Files.
Mask My File supports PDF and common image formats. For scanned documents, text-based PDFs give the most reliable detection results.
Detection is based on text recognition. Handwritten text in scanned documents may not be detected reliably.
Yes. Once you export the masked file, the personal data is replaced with black bars and cannot be recovered from that exported file.
This quick-start guide is written by the developer of the app. Steps are based on the current App Store version.