Don't waste your time
It doesn't actually unlock PDF files; it claims to be unlocked, but it's just a fake.
Greedware
Greedware, beware
great app, period
do what is said perfectly
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🔧 Utilities
Free
In-App PurchasesWith Ads
About
Secure your documents by adding password protection or remove existing passwords from PDF files. This app also offers tools to merge, extract, and convert PDFs, along with OCR capabilities to recognize text.
✓Lock PDF with password
✓Unlock password-protected PDFs
✓Merge multiple PDF files
✓Extract or remove PDF pages
✓Add watermarks to PDFs
✓Scan and recognize text (OCR)
✓Digitally sign PDFs
✓Convert web pages to PDF
Show original description
What's New in PDF
3.2
May 28, 2026
- Crashes Fixed - Performance Improved
Subscription plans
Subscription Yearly
PDF Lock Subscription Yearly
$19.991 Year
3 Days trialUser reviews
Developer apps
FAQ
Does PDF: Lock & Unlock have ads?
Yes, PDF: Lock & Unlock contains advertisements. This is common for free utility apps that offer in-app purchases for advanced features or an ad-free experience.
What subscription plans are available for PDF: Lock & Unlock?
PDF: Lock & Unlock offers weekly ($4.99/P7D), monthly ($9.99/P1M), and yearly ($19.99/P1Y) subscription plans. The yearly plan includes a 3-day free trial.
How do I remove a password from a PDF using PDF: Lock & Unlock?
To remove a password, select your PDF document, enter the existing password, choose the option to remove the password, and the file will be saved. You can then share the unlocked PDF.
Can PDF: Lock & Unlock unlock any PDF file?
Most PDFs can be unlocked. Files with an owner password can be unlocked instantly. However, thoroughly encrypted files require the correct password to be provided for unlocking.
What devices is PDF: Lock & Unlock compatible with?
PDF: Lock & Unlock is available for iPhone, iPad, and iPod. It is designed for iOS devices.
How often is PDF: Lock & Unlock updated?
The latest version of PDF: Lock & Unlock is 3.1, last updated on September 7, 2025. Updates typically occur to introduce new features or improve performance.
What is the age rating for PDF: Lock & Unlock?
PDF: Lock & Unlock has an age rating of 4+. This indicates it is suitable for users aged 4 and above.
What are the main editing features in PDF: Lock & Unlock?
Beyond locking and unlocking, PDF: Lock & Unlock allows users to merge PDFs, remove or extract pages, add watermarks, and convert web pages to PDF format.
