PDF Locker is made and published by Recent Activity. AppBrain is an independent app data site and isn't affiliated with Recent Activity. The app name, icon, screenshots and description belong to Recent Activity and are shown as published on Google Play.
AppBrain's verdict
NewNiche- Installs
- 120
- Last updated
- October 17, 2026
- Ads
- Contains ads
- Size
- 18.5 MB
PDF Locker came out 39 days ago. It is a niche app, with 120 installs. It doesn't have enough ratings yet to judge what users think.
User feedback
Ratings and reviews on Google PlayComments on PDF Locker for Android
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Store listing
By Recent Activity, from Google Play“Lock PDF and Protect PDFs with AES-256 encryption.”
Description by Recent Activity Written by the developer, not by AppBrain. Click to read.
PDF Locker lets you choose a PDF, create a password, and save an encrypted copy in a private vault on your Android device. Your PDF contents and passwords are not uploaded by PDF Locker.
Key features:
• Protect PDFs with AES-256 encryption
• Process documents locally on your device
• Keep protected copies together in a private vault
• Open, share, or save a protected copy whenever you need it
• Prevent editing and text extraction from protected copies
• Choose your own password with confirmation to avoid typing mistakes
• No account or sign-in required
How it works:
1. Tap “Lock a PDF” and choose a document.
2. Enter and confirm a password of at least 8 characters.
3. PDF Locker creates an encrypted copy and adds it to your vault.
4. Share it or save a copy to a location you choose.
Your original PDF is left unchanged. Passwords are never stored, so keep yours somewhere safe. Files already protected by a password must be unlocked before PDF Locker can protect them again.
Safety and technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- ?
- App size
- 18.5 MB
- Content rating
- Everyone
Technologies used by PDF Locker
Releases
Updates seen on Google Play- Version
- 1.4
- Launched
- October 2026
Alternatives
Similar apps and more from Recent ActivityAlternatives to PDF Locker
More from Recent Activity
Installs
Tracked by AppBrain- Last 30 days
- 220
- Play install range
- 100+
- Launched
- October 2026
Rankings
Google Play top chartsGoogle Play Rankings for PDF Locker
About the app and developer
About PDF Locker
PDF Locker is a tools app developed by Recent Activity.
Install Statistics
PDF Locker has been installed 120 times. In the last 30 days, the app was installed 220 times.
User Ratings
The app has no ratings yet.
App Information
PDF Locker is freely available from Google Play. The app size is 18.53 MB. The latest version available is 1.4. The last update was on October 17, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since October 2026.
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