PDF Locker: PDF Wolf
Password Protect & Secure PDFs
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Password-protect any PDF in seconds. Fully on-device — your files never leave your iPhone. Try protection free, save and share with Pro.
PDF WOLF lets you add password protection to any PDF, directly on your device. No cloud uploads. No accounts. No servers involved. Your files stay private from start to finish.
HOW IT WORKS
Import any PDF from Files, iCloud Drive, or any app on your device. Choose to generate a cryptographically strong random password automatically, or enter your own. PDF WOLF applies industry-standard PDF encryption on-device, then verifies the result before presenting it to you.
Once protection is complete, you can preview the result. Saving the protected PDF to Files or sharing it directly requires a Pro plan.
WHAT YOU GET
— Import any PDF from Files or iCloud Drive
— Generate a strong random password with one tap
— Enter and confirm your own password manually
— On-device encryption — your PDF never leaves your iPhone or iPad
— Verification step confirms encryption worked before you save
— Password vault: all passwords stored securely in your device's Keychain
— Reveal, copy, or reference any saved password from the Passwords tab
— Protection history with thumbnail previews of past protected files
— Save protected PDFs directly to Files (Pro)
— Share protected PDFs via AirDrop, Mail, Messages and more (Pro)
PRIVACY FIRST
PDF WOLF uses no analytics, no tracking, and no advertising SDKs. It communicates only with Apple's App Store to process purchases. Everything else happens entirely on your device.
PRO PLAN
A Pro plan (Weekly or Lifetime) unlocks the ability to save protected PDFs to the Files app and share them via the iOS share sheet. The protection process itself can be experienced before purchasing — Pro gates only the final file delivery.
Passwords are stored in your device's Keychain, the same secure storage used by banks and password managers. PDF WOLF never sees or stores your passwords on any server.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy policy: https://1kbapps.com/pdfwolf/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Version 3.0 — Rebuilt from the ground up.
PASSWORDS TAB
A dedicated vault for every password you've created. Reveal, copy, or reference passwords for any protected file — all secured in your device's Keychain.
PROTECTION HISTORY
Browse thumbnail previews of every PDF you've protected. Save or share any past result directly from the History tab.
LIFETIME PLAN
A one-time purchase option is now available alongside the Weekly plan.
REDESIGNED INTERFACE
Completely fresh UI with Dark Mode, refined animations, and a cleaner protection flow throughout.
The developer, Vikram Singh, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vikram Singh
- Size
- 3.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Mobile Pro Access Yearly USD 19.99
- Mobile Pro Access Weekly USD 4.99
- Pro Lifetime Unlock USD 19.99
- Copyright
- Copyright © 2026 1kbApps. All rights reserved.