Password Protect PDF in COM/ActiveX

How to Password Protect a PDF

Depending upon your desired security settings, DynamicPDF Core Suite supports the following different security algorithms.

• Aes128Security
• Aes256Security
• RC4128Security
• RC440Security

Here we illustrate using Aes256Security in the following example.

Steps to Password Protect PDF

1. Create a Document object.
2. Create a Page object and add it to Document instance.
3. Create a Aes256Security object and pass the owner and user password to the instance's constructor.
4. Set the Document instance's security.
5. Output the Document instance to the browser.

Sample code - ASP

Dim MyDocument
Set MyDocument = Server.CreateObject("DynamicPDF.Document")
            
Dim MyPage
Set MyPage = MyDocument.AddPage()
           
Dim MySecurity
Set MySecurity = MyDocument.SetAes256Security("owner", "user")

MyDocument.DrawToWeb

How to Add Password to Existing PDF

The above security classes were used to add password protection to a new PDF document. You can also add password protection to an existing PDF document, as the following example illustrates.

Steps to Add Password Protection to a PDF

1. Create a Document object and load the PDF file.
2. Create a Aes256Security object instance and in the constructor, set the owner and user password.
3. Set the Document instance's security.
4. Output the Document instance to the Browser.

Sample Code - ASP

Dim MyDocument
Set MyDocument = Server.CreateObject("DynamicPDF.Document")
MyDocument.LoadPdf Server.MapPath("pdf-a.pdf")

Dim MySecurity
Set MySecurity = MyDocument.SetAes256Security("owner", "user")

MyDocument.DrawToWeb

Getting Started

DynamicPDF Generator Information

More information on DynamicPDF Generator can be found from its webpage.

• DynamicPDF Generator for COM/ActiveX

Available on Other Platforms

• .NET - DynamicPDF Generator for .NET
• Java - DynamicPDF Generator for Java