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Guides: redact, scan and sign PDFs on your phone
Plain answers to common PDF jobs on a phone: hiding private details so they are really gone, scanning paper, and signing a form. Each guide starts with the free tools.
Written by the people who make DocMint. Where we mention other apps or platforms, we link to their own help pages.
Guides
All DocMint guides
- How to redact a PDF on iPhone so the text is really gone
Why a box in Markup is not enough, and how to remove text for real.
- How to black out text in a PDF so it is really gone
Why a black box hides nothing, how to check a PDF, and what really works.
- How to redact a PDF on Android
Why drawing over text is not enough on Android, and the steps that remove it.
- How to scan a document to PDF on your phone
Built-in scanners on iPhone and Android, and a clean, searchable PDF with DocMint.
- How to remove personal data from a PDF before you send it
Where personal data hides in a PDF, and how to send only what is needed.
- How to sign a PDF on your phone
Built-in ways on iPhone and Android, and signing and filling in forms with DocMint.
Get DocMint
Scan, sign and redact PDFs on your phone
DocMint is free to download. Scanning, text recognition and signing are free; DocMint Pro adds redacted PDF export and exports without the DocMint mark. No account, and your documents stay on your phone.