# PDF Lock: Unlock & Protect — Lock & unlock PDF files

> Lock & unlock PDF files (iPhone/iPad app by Nikunj Gondaliya.)

- Source: https://appshunter.io/ios/app/pdf-lock-unlock-and-protect/id6789138439 (this page in markdown: same URL + `.md`)
- Developer: [Nikunj Gondaliya](https://appshunter.io/developer/6789138441)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 17 MB
- Languages: American English
- Released: 2026-07-27
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/pdf-lock-unlock-and-protect/id6789138439/reviews.md

## What is PDF Lock?

Forgot the password on an important PDF? Need to secure a document before sharing? PDF Lock: Unlock & Protect makes it simple — unlock or password-protect any PDF right on your iPhone or iPad, in just a few taps.

Your files never leave your device. Everything is processed locally using Apple's built-in PDF engine. No uploads. No cloud. No account required. No ads. Just fast, private PDF security whenever you need it.

UNLOCK PDFs IN SECONDS
Remove password protection from any PDF and get back to reading, editing, or sharing. Enter the current password, and your unlocked file is ready to export — to Files, Mail, WhatsApp, or any app you use.

LOCK PDFs WITH A PASSWORD
Keep sensitive documents safe before you send them. Add strong password protection to any PDF so only the right people can open it. (PDF Lock is included with PDF Lock: Unlock & Protect Pro.)

BUILT-IN PDF VIEWER
Preview your unlocked or locked PDF inside the app before you export. Scroll through every page with a clean, full-screen viewer — no extra apps needed.

EASY EXPORT & SHARE
Save processed PDFs to the Files app or share them instantly with the native iOS share sheet. Your workflow stays simple and familiar.

PDF HISTORY
Revisit your recently processed files without hunting through folders. Open past PDFs directly from your history list and pick up where you left off.

HOW IT WORKS
1. Select a PDF from Files, Mail, or any app
2. Unlock it (enter the password) or lock it (set a new one)
3. Preview, export, or share — done

PRIVACY YOU CAN TRUST
* 100% on-device processing — files are never sent to a server
* No account or sign-up required
* No ads, ever
* Your passwords and documents stay on your device

FREE TO START
Get 2 free PDF unlocks every day — no credit card, no commitment. Perfect for occasional use.

UPGRADE TO PRO
Go unlimited with PDF Lock: Unlock & Protect Pro:
* Unlimited PDF unlocks — no daily limits
* Lock PDFs with password protection
* Extended PDF history (last 20 files)
* Priority support

Download PDF Lock: Unlock & Protect today and take control of your PDF security — privately, quickly, and right from your pocket.
Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly - PDF Lock & Unlock Pro | $0.99 | per month |
| Yearly - PDF Lock & Unlock Pro | $7.99 | per year |



## Version history (last 3 releases)

### 1.1.0 — 2026-08-25

• New Lifetime Pro option — unlock all Pro features with a one-time purchase
• Monthly and Annual Pro subscriptions still available
• Performance and stability improvements

### 1.0.1 — 2026-07-30

- Added push notifications so you never miss important updates
- Minor bug fixes and performance improvements

### 1.0.0 — 2026-07-28

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*