You can also download the package from NuGet. With the PDF open, return to the âFile’ menu again and select âProperties’, this should prompt a dialogue box.

From here select the PDF you want to password protect and open it. If you would like to print a Word document to PDF and add password protection, then just follow the steps below: 1) Go to File > Export. If you need to password protect an Excel document while printing it to PDF, then go to the next chapter where we discuss that particular task. The easiest way to install the package is through the Visual Studio Package Manager. Saving and Password Protecting a PDF using Microsoft Adobe Acrobat With Adobe Acrobat open, navigate to the âFile’ menu and select âOpen’. Creating Encrypted PDF Straight From MS Office. Sample code - C# MergeDocument document = new MergeDocument('pdf-a.pdf') ĭocument.Security = Started NuGet PackageĭynamicPDF Core Suite is available on NuGet and is part of the package.

Invoke the Draw method on the Document to output the PDF.Create a MergeDocument object with the path to the PDF file.The above security classes can be used to add password protection to an existing PDF document as well. How To Password Protect A PDF Free With or Without Acrobat Published on With the help of this ppt user will get to know that how can they open the password-protected PDF file. Sample Code - C# Document document = new Document() Īes256Security security = new Aes256Security('owner', 'user') ĭocument.Security = to Add Password to PDF Invoke the Draw method on the Document instance to output the PDF.Create a Aes256Security object by setting the owner and user password.Create a Page object and add it to the Document instance.Below is the list of classes used to set passwords or to encrypt PDF with different security settings. When an owner password is specified, the PDF viewer will require it to modify the PDF. If left blank the viewer will not prompt for a password when opening the PDF. When a user password is specified, the PDF viewer will require this password to open the PDF document. Setting password protection and encrypting a PDF can be done in a few lines of code. Remove the password from your PDF file online and for free.

How to password protect pdf free