The SDK samples given below describe how to quickly make your application do remove protection from pdf with pdf sdk in VB.NET with the help of ByteScout PDF Suite. Just copy and paste the code into your VB.NET application’s code and follow the instructions. Check VB.NET sample code samples to see if they respond to your needs and requirements for the project.
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Imports Bytescout.PDF Module Program Sub Main() Try 'Files Dim fileName As String = "ProtectedPDFFile.pdf" Dim fileName_UnProtected As String = "UnProtectedPDFFile.pdf" 'Protected file password Dim filePassword As String = "admin@123" 'Process file to remove password Dim document As Document = New Document() document.RegistrationName = "demo" document.RegistrationKey = "demo" document.Load(fileName, filePassword) ' Remove password protection and encryption document.Security.OwnerPassword = String.Empty document.Security.UserPassword = String.Empty document.Security.EncryptionAlgorithm = EncryptionAlgorithm.None ' Remove restrictions document.Security.AllowAccessibilitySupport = True document.Security.AllowAssemlyDocument = True document.Security.AllowContentExtraction = True document.Security.AllowFillForms = True document.Security.AllowModifyAnnotations = True document.Security.AllowModifyDocument = True document.Security.AllowPrintDocument = True document.Security.PrintQuality = PrintQuality.HightResolution 'Save Unprotected file document.Save(fileName_UnProtected) Console.WriteLine("PDF restrictions removed successfully!") Process.Start(fileName_UnProtected) Catch ex As Exception Console.WriteLine(ex.Message) End Try Console.WriteLine("Press any key to continue...") Console.ReadLine() End Sub End Module