# unlock pdf & lock pdf — add & remove password from pdf

> Add and remove passwords from PDF files to secure or access them. (iPhone/iPad app by Sounak Sarkar.)

- Source: https://appshunter.io/ios/app/unlock-pdf-and-lock-pdf/id1623109999 (this page in markdown: same URL + `.md`)
- Developer: [Sounak Sarkar](https://appshunter.io/developer/938584928)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Rating: 4.20/5 from 54 App Store ratings · 17 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 7 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2022-05-16
- Data updated: 2026-09-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/unlock-pdf-and-lock-pdf/id1623109999/reviews.md

## What is unlock pdf & lock pdf?

Protect your sensitive PDF documents with strong password encryption or remove passwords from PDFs you own with just a few taps. PDF Lock & Unlock is a fast, secure, and easy-to-use tool designed to help you manage PDF security anytime, anywhere.

Key Features:

*** Lock PDF Files ***

Add password protection to PDF documents
Encrypt confidential files and prevent unauthorized access
Secure business, personal, and financial documents

*** Unlock PDF Files ***

Remove PDF passwords from files you have permission to access
Instantly unlock protected PDFs for easier sharing and editing
Fast and reliable PDF decryption

*** Simple & Fast Processing ***

User-friendly interface
One-tap PDF protection and unlocking
Process files quickly without compromising quality

*** Manage PDFs Securely ***

Keep your documents safe and private
Works with contracts, invoices, reports, forms, and more
No technical knowledge required

Why Choose PDF Lock & Unlock?

Whether you need to secure important documents with a password or unlock PDFs for convenient access, PDF Lock & Unlock provides a simple and efficient solution. Protect your privacy, safeguard sensitive information, and manage PDF security effortlessly.

Note: Our app does not break PDF password it just unlocks the PDF file with existing password and save it without any password. So you can open the PDF without entering the password every time you open the document.


Our App can be used for free with Ads and limited features, however, you can purchase a Unlock PDF Premium subscription for the additional advanced features, and remove Ads.

SUBSCRIPTION AND TERMS:

When you download our App you can opt in to a 3 days free trial for monthly and 7 days free trial for yearly subscription. Our App offers auto-renewing monthly/yearly subscription options for access to the app's features and content. Your Unlock PDF Premium subscription will automatically renew at the end of each term and payment will be charged through your iTunes account. You can turn off auto-renew at any time from your iTunes account settings but refunds will not be provided for any unused portion of the term. To avoid renewal, you must cancel at least 24 hours before your subscription or trial ends. Your account will be charged for renewal within 24 hours prior to the end of the current period. Any unused portion of a free trial period will be forfeited if you purchase a subscription.

SUBSCRIPTION PRICING:

Premium Monthly: $0.99 / Month (3 days free trial)
Premium Yearly: $5.99 / Year (7 days free trial)

Read more about our terms, conditions, and privacy here:

• Privacy Policy: https://www.racersoft.in
• Terms of Use: https://racersoft.in/terms-of-use/

## Key features

- Add password to PDF
- Remove password from PDF
- Change PDF password
- Password encryption
- Free with ads
- Premium subscription

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $5.99 | per year |


## Recent user reviews (10 of 17)

All indexed reviews: https://appshunter.io/ios/app/unlock-pdf-and-lock-pdf/id1623109999/reviews.md

### 5/5 — Super appli

*2026-08-30*

Sans elle sur iPad je devrais taper le code de ma fiche de paie à chaque fois

### 1/5 — Help?

*2026-05-15*

Not sure what's going on. I unlock the pdf fine. Then go to the unlocked pdf. I want to delete a page and then it asks me for the owner password. I put in the original password and it says invalid password. Something is either broken or this is a scam with something embedded into the new file.

**Developer response:** Sorry for the inconvenience caused. Try entering blank password and check if it works. Or try using our online version ‘shivapdf.com’ where you can add remove pages and unlock pdf at once.

### 4/5 — Essaie gratuit c’est cool

*2026-04-24*

Très bon pratique et mensuel !

### 1/5 — Pra desbloquear pede a senha do PDF

*2026-03-20*

Se eu tivesse a senha, eu não precisaria usar esse app, correto? Não presta pra nada esse app.

### 1/5 — Não funciona

*2025-08-13*

Mandei abrir um PDF e disse que tal arquivo não existe.

**Developer response:** Sorry for the inconvenience caused. We will look at it and try to fix it as soon as possible.

### 1/5 — Landscape mode

*2024-10-24*

Please fix!! It does not work on landscape mode. I use the Magic Keyboard, it is impossible to use on portrait mode. 

I promise a better review if you fix that.

**Developer response:** Thank you for the feedback we will try to fix it on our future updates.

### 1/5 — Nul!

*2024-07-31*

Nul. Ne fonctionne pas!

### 1/5 — Can’t open file

*2024-06-26*

Refuses to open a PDF stating incorrect password. The password is correct and file opens fine in other apps.

**Developer response:** Sorry for the inconvenience caused. We will look into this and fix any issue.

### 1/5 — Too many ads

*2024-05-24*

Waste of time

**Developer response:** Sorry for the inconvenience caused. We know that ads are annoying but they help us to run all expenses. We think that you will understand this. If you want to use our app ads free then you can remove ads by purchasing our app.

### 2/5 — mangelhaft

*2024-05-16*

- aus einer 16kb PDF wird eine 450kb PDF
- die Qualität der entsperrten Version ist drastisch reduziert
- ob die App offline arbeitet ist nicht erkennbar.

**Developer response:** Sorry für die Unannehmlichkeiten. Wir kümmern uns darum und beheben es so schnell wie möglich. Und zu Ihrer Information: Diese App funktioniert offline. Alle PDFs werden lokal verarbeitet.

## Frequently asked questions about unlock pdf & lock pdf

### Does unlock pdf & lock pdf have ads?

Yes, the free version of unlock pdf & lock pdf contains advertisements. Users can remove ads by purchasing the Unlock PDF Premium subscription.

### How much does unlock pdf & lock pdf premium cost?

Unlock PDF Premium offers monthly and yearly subscription options. The monthly plan is $0.99/month with a 3-day free trial, and the yearly plan is $5.99/year with a 7-day free trial.

### Can I cancel my unlock pdf & lock pdf subscription?

Yes, you can cancel your subscription at any time by turning off auto-renew in your iTunes account settings. To avoid renewal charges, cancel at least 24 hours before your subscription or trial ends.

### What devices does unlock pdf & lock pdf support?

unlock pdf & lock pdf is available for iPhone, iPad, and iPod. It is designed for iOS devices.

### What is the age rating for unlock pdf & lock pdf?

The app has an age rating of 4+, making it suitable for a wide range of users.

### How often is unlock pdf & lock pdf updated?

The app was last updated on August 7, 2025, indicating active development and maintenance.

### Does unlock pdf & lock pdf break PDF passwords?

No, unlock pdf & lock pdf does not break PDF passwords. It unlocks PDFs using the existing password and saves them without a password, allowing for easier access without repeated password entry.

### What is the user sentiment for unlock pdf & lock pdf?

The app has a rating of 4.2 stars from 48 ratings, suggesting generally positive user sentiment.

## Version history (last 5 releases)

### 1.8 — 2026-06-08

Regular updates
Minor bugs fixed
UI updated
Performance improved

### 1.7 — 2025-08-07

Regular updates
Minor bugs fixed
UI updated
Performance improved

### 1.6 — 2024-06-02

Minor bugs fixed
UI updated
Performance improved
PDF quality reducing and size increasing after unlock fixed

New subscription model added to remove all advertisements

### 1.5 — 2024-02-16

Regular updates

### 1.4 — 2024-02-02

Minor bug fixed
UI Updated

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All apps by Sounak Sarkar: https://appshunter.io/developer/938584928

## Related topics

[pdf password remover offline](https://appshunter.io/ios/topics/pdf-password-remover-offline) · [pdf password remover tool](https://appshunter.io/ios/topics/pdf-password-remover-tool) · [pdf unlocker pro](https://appshunter.io/ios/topics/pdf-unlocker-pro)

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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 2026-09-06.*