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PdfEncryptionDetailsUserPassword Property

Specifies the user password required for opening the encrypted PDF document.

Namespace: SautinSoft.Document
Assembly: SautinSoft.Document (in SautinSoft.Document.dll) Version: 2024.3.11
Syntax
public string UserPassword { get; set; }

Property Value

String
Remarks

The user password will be required to open an encrypted PDF document for viewing. The permissions specified in Permissions will be enforced by the reader software.

The user password can be null or empty string, in this case no password will be required from the user when opening the PDF document. The user password cannot be the same as the owner password.

Example

See Developer Guide: Create and secure a PDF document by password

Create and secure a PDF document by password. Also set the permissions for the document using C#
using System;
using SautinSoft.Document;
using SautinSoft.Document.Drawing;
using System.IO;
using System.Linq;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            // Get your free 30-day key here:   
            // https://sautinsoft.com/start-for-free/

            SecureDocument();
        }

        /// <summary>
        /// Create and secure a PDF document by password. Also set the permissions for the document.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/security-options-net-csharp-vb.php
        /// </remarks>
        public static void SecureDocument()
        {
            string filePath = @"ProtectedDocument.pdf";

            DocumentCore dc = new DocumentCore();

            // Let's create a simple document.
            dc.Content.End.Insert("Hello World!!!", new CharacterFormat() { FontName = "Verdana", Size = 65.5f, FontColor = Color.Orange });

            PdfSaveOptions so = new PdfSaveOptions();
            // Password Protection
            so.EncryptionDetails.UserPassword = "12345";
            // EncryptionAlgorithm
            so.EncryptionDetails.EncryptionAlgorithm = PdfEncryptionAlgorithm.RC4_128;
            //Permissions: Content Copying, Commenting, Printing, Changing the Document, filing of form fildes etc
            //Printing: Allowed
            so.EncryptionDetails.Permissions = PdfPermissions.Printing;

            // Save a document as the PDF file with Security Options.
            dc.Save(filePath, so);

            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(filePath) { UseShellExecute = true });
        }
    }
}
Create and secure a PDF document by password. Also set the permissions for the document using VB.Net
Imports System
Imports System.IO
Imports SautinSoft.Document

Module Sample
    Sub Main()
        SecureDocument()
    End Sub
    ''' Get your free 30-day key here:   
    ''' https://sautinsoft.com/start-for-free/
    ''' <summary>
    ''' Create and secure a PDF document by password. Also set the permissions for the document.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/security-options-net-csharp-vb.php
    ''' </remarks>
    Sub SecureDocument()
        Dim filePath As String = "ProtectedDocument.pdf"

        Dim dc As New DocumentCore()

        ' Let's create a simple document.
        dc.Content.End.Insert("Hello World!!!", New CharacterFormat() With {
                .FontName = "Verdana",
                .Size = 65.5F,
                .FontColor = Color.Orange
            })

        Dim so As New PdfSaveOptions()
        ' Password Protection
        so.EncryptionDetails.UserPassword = "12345"
        ' EncryptionAlgorithm
        so.EncryptionDetails.EncryptionAlgorithm = PdfEncryptionAlgorithm.RC4_128
        'Permissions: Content Copying, Commenting, Printing, Changing the Document, filing of form fildes etc
        'Printing: Allowed
        so.EncryptionDetails.Permissions = PdfPermissions.Printing

        ' Save a document as the PDF file with Security Options.
        dc.Save(filePath, so)

        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(filePath) With {.UseShellExecute = True})
    End Sub
End Module
See Also