We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

Trusted by the world’s leading companies


The Syncfusion Essential Flutter PDF library allows developers to build PDF security into their application, spanning a range of low to high encryption standards to secure or protect PDF documents against unauthorized access. It complies with the improved security of PDF 2.0, which provides AES (Advanced Encryption Standard) 256 Revision 6 with Unicode (non-Roman characters) password support.

As per Europe’s GDPR 2018, it is mandatory to protect customers’ data. The Syncfusion .NET PDF library helps you to protect your PDF containing customers’ data by encrypting with the latest standards.

Encryption Standards

Syncfusion Essential PDF provides support for basic to advanced encryption standards:

  • RC4 40-bit and 128-bit
  • AES 128-bit, 256-bit Revision 5 and 256-bit Revision 6 (PDF 2.0)

Protect with Owner Password

The owner or master password is used to change the password and to set or restrict access rights of the PDF document. Owner password is necessary to open and view PDF document.

Protect with owner password

Protect with user password

Protect with User Password

The user or open password is required to open and view PDF documents with allowed permissions. Only PDFs with user password are safe from cracking.

Document Permission

By customizing the permission settings, you can allow or restrict users from performing certain actions such as content copying, printing, editing the document, filling form fields, and more. In addition, it is possible to change or remove PDF permission and password.

Document Permission


Greatness—it’s one thing to say you have it, but it means more when others recognize it. Syncfusion is proud to hold the following industry awards.

Scroll up icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile
Live Chat Icon