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Program.cs
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Program.cs
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using ceTe.DynamicPDF;
using ceTe.DynamicPDF.Cryptography;
using ceTe.DynamicPDF.Merger;
using System;
using System.Text.RegularExpressions;
namespace example_encrypt_pdf_dotnet
{
// This example shows how to encrypt a PDF document.
// It references the ceTe.DynamicPDF.CoreSuite.NET Nuget package.
class Program
{
static void Main(string[] args)
{
EncryptNewPDF();
EncryptExistingPDF();
}
// Encrypts a new PDF created from scratch
// This code uses the DynamicPDF Generator for .NET product.
// Use the ceTe.DynamicPDF namespace for the Document and Page classes.
// Use the ceTe.DynamicPDF.Cryptography namespace for the Aes256Security class.
private static void EncryptNewPDF()
{
//Create a Document object
Document document = new Document();
//Create a Page and add to Document
Page page = new Page();
document.Pages.Add(page);
//Create a Aes256Security object with passwords and required options
Aes256Security security = new Aes256Security("owner", "user");
security.AllowAccessibility = true;
security.AllowFormFilling = false;
//Set security to the document
document.Security = security;
//Save Document
document.Draw("output-new-pdf.pdf");
}
// Encrypts an existing PDF document
// This code uses the DynamicPDF Merger for .NET product.
// Use the ceTe.DynamicPDF.Merger namespace for the MergeDocument class.
private static void EncryptExistingPDF()
{
//Create a MergeDocument object with the existing PDF
MergeDocument document = new MergeDocument(GetResourcePath("doc-a.pdf"));
//Create Security object with passwords and other settings
Aes256Security security = new Aes256Security("owner", "user");
security.AllowAccessibility = true;
security.AllowFormFilling = false;
//Set security to the Document
document.Security = security;
//Save document
document.Draw("output-existing-pdf.pdf");
}
// This is a helper function to get a full path to a file in the Resources folder.
public static string GetResourcePath(string inputFileName)
{
var exePath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().CodeBase);
Regex appPathMatcher = new Regex(@"(?<!fil)[A-Za-z]:\\+[\S\s]*?(?=\\+bin)");
var appRoot = appPathMatcher.Match(exePath).Value;
return System.IO.Path.Combine(appRoot, "Resources", inputFileName);
}
}
}