lock and unlock pdf - pdfsmith

Add, Remove password to PDF

Free · Designed for iPad. Not verified for macOS.

Secure your documents with confidence using PDFSmith, a fast and privacy-first PDF security tool that lets you lock PDFs, unlock PDFs, add passwords, remove password protection, and change PDF passwords — all fully offline on your device. No uploads. No cloud processing. Your files never leave your phone. Unlock Password-Protected PDFs Remove password protection from PDFs when you know the correct password Instantly unlock PDFs for viewing, editing, or sharing Password is required — PDFSmith does not bypass or crack encryption Lock PDFs with a Password Add a password to unprotected PDF files Secure sensitive documents before sharing Protect PDFs instantly with strong encryption Fast, Offline & On-Device 100% offline PDF processing No internet connection required Instant results with no waiting Privacy-First by Design Files are processed entirely on your device No uploads to servers No data collection or tracking Save & Share Easily Save locked or unlocked PDFs instantly Share securely using your device’s share options Perfect For Professionals handling confidential documents Students and educators Travelers and offline environments Anyone who values privacy and control Key Features Lock PDF with password Unlock PDF with password Add password to PDF Remove password from PDF (password required) Offline PDF security On-device PDF processing PDFSmith delivers professional-grade PDF security — fast, private, and completely under your control.

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

Bug Fixes

Version 1.2.4

The developer, Nikhil Reddy Avuthu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Nikhil Reddy Avuthu
    Size
    • 23.2 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPad
      Requires iPadOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Nikhil Reddy Avuthu
  • Developer Website
  • Privacy Policy

    • More by Nikhil Reddy Avuthu