A-PDF Password Security is the most suitable solution for those who are looking for software that has the ability to change passwords on PDF files. With just one click, you can freely set new passwords with an enhanced level of security. This security software from A-PDF can now protect your important data with 128-bit encryption. Besides, it also easily removes the existing password protection mode without requiring any complicated conditions, which will also be the factor that makes those who love simplicity choose A- PDF Password Security.
In addition, the program can process one or more documents at the same time to save users time and effort. Not only that, with the purpose of helping users easily get acquainted with the features, this PDF security program also designs an extremely streamlined user interface. A-PDF Password Security focuses on practicality instead of trying to create an eye-catching and complicated interface.
Changing your password regularly and setting complex passwords are two of the many popular methods you can apply immediately to protect your data. Especially with PDF format, because this is a sharing format, when you set up login methods, security will be increased. From there, the risks of data theft will also be minimized to the lowest level.
Understanding that importance, not all users can easily change the password in PDF format in a standard and safe way. For that reason, using support platforms or tools specializing in changing passwords will help reduce the above process as well as optimize efficiency.
A-PDF Password Security Coupon Codes

A-PDF Password Security Features & Screenshots
- Encrypt PDF files: This feature is provided by the software to help users effectively protect their PDF documents from unauthorized access. A-PDF Password Security uses a lapse encryption algorithm to encrypt data in users’ PDF files, from which users can more closely ensure the security of their important PDF documents.

- Decrypt PDF files: This feature allows users to remove standard password security from protected PDF files. Users can use this feature to quickly solve problems such as forgetting passwords or losing access to their PDF documents in the most effective way.

- Change PDF file restrictions: A-PDF Password Security provides users with this feature to help users change or require a password to open restrictions such as allowing or disallowing printing, copy content, change files and so on. Users will be able to protect and easily control their PDF documents from unauthorized access.


- Bulk change PDF file properties: With A-PDF Password Security, users are provided with the ability to bulk edit their PDF metadata without having to use specialized tools. This feature will help you change the title, author or keywords on a series of PDF files effectively and quickly, thereby saving you maximum time by not having to edit each file individually.

Frequently asked questions
Frequently asked questions
Technical Details
Language Support | English, Français, Italian, Spanish, Swedish, and more… |
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Operating System | Windows Vista, Windows 7, Windows 8/8.1, Windows 10/11 |
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