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Sign PDF - VB.NET

PDF SDK sample in VB.NET demonstrating ‘Sign PDF’

Program.vb
Imports System.Drawing
Imports Bytescout.PDF

''' <summary>
''' This example demonstrates how to digitally sign PDF document.
''' </summary>
Class Program

	Shared Sub Main()

		' Create new document
		Dim pdfDocument = New Document()
		pdfDocument.RegistrationName = "demo"
		pdfDocument.RegistrationKey = "demo"

		' If you wish to load an existing document uncomment the line below And comment the Add page section instead
		' pdfDocument.Load(".\existing_document.pdf")

		' Add page
		Dim page = New Page(PaperFormat.A4)
		pdfDocument.Pages.Add(page)

		' Add sample page content
		Dim brush = New Bytescout.PDF.SolidBrush()
		Dim font = New Bytescout.PDF.Font("Arial", 16)
		Dim rect = New RectangleF(0, 50, page.Width, 100)
		Dim stringFormat = New Bytescout.PDF.StringFormat()
		stringFormat.HorizontalAlign = HorizontalAlign.Center
		page.Canvas.DrawString("Signature Test", font, brush, rect, stringFormat)

		' Signing parameters
		Dim certficateFile = ".\demo_certificate.pfx"
		Dim certficatePassword = "123"
		' Optional parameters
		Dim signingReason = "Approval"
		Dim contactName = "John Smith"
		Dim location = "Corporate HQ"

		' Invisible signature
		'pdfDocument.Sign(certficateFile, certficatePassword)

		' Visible signature
		Dim signatureRect = New RectangleF(400, 50, 150, 100)
		pdfDocument.Sign(certficateFile, certficatePassword, signatureRect, signingReason, contactName, location)

		' Save document to file
		pdfDocument.Save("result.pdf")

		' Cleanup 
		pdfDocument.Dispose()

		' Open document in default PDF viewer application
		Process.Start("result.pdf")

	End Sub

End Class

Resources.Designer.vb
��'------------------------------------------------------------------------------

' <auto-generated>

'     This code was generated by a tool.

'     Runtime Version:4.0.30319.42000

'

'     Changes to this file may cause incorrect behavior and will be lost if

'     the code is regenerated.

' </auto-generated>

'------------------------------------------------------------------------------



Option Strict On

Option Explicit On





Namespace My.Resources

    

    'This class was auto-generated by the StronglyTypedResourceBuilder

    'class via a tool like ResGen or Visual Studio.

    'To add or remove a member, edit your .ResX file then rerun ResGen

    'with the /str option, or rebuild your VS project.

    '''<summary>

    '''  A strongly-typed resource class, for looking up localized strings, etc.

    '''</summary>

    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0"), _

     Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _

     Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _

     Global.Microsoft.VisualBasic.HideModuleNameAttribute()> _

    Friend Module Resources



        Private resourceMan As Global.System.Resources.ResourceManager



        Private resourceCulture As Global.System.Globalization.CultureInfo



        '''<summary>

        '''  Returns the cached ResourceManager instance used by this class.

        '''</summary>

        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _

        Friend ReadOnly Property ResourceManager() As Global.System.Resources.ResourceManager

            Get

                If Object.ReferenceEquals(resourceMan, Nothing) Then

                    Dim temp As Global.System.Resources.ResourceManager = New Global.System.Resources.ResourceManager("Signing.Resources", GetType(Resources).Assembly)

                    resourceMan = temp

                End If

                Return resourceMan

            End Get

        End Property



        '''<summary>

        '''  Overrides the current thread's CurrentUICulture property for all

        '''  resource lookups using this strongly typed resource class.

        '''</summary>

        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _

        Friend Property Culture() As Global.System.Globalization.CultureInfo

            Get

                Return resourceCulture

            End Get

            Set(ByVal value As Global.System.Globalization.CultureInfo)

                resourceCulture = value

            End Set

        End Property

    End Module

End Namespace


Settings.Designer.vb
��'------------------------------------------------------------------------------

' <auto-generated>

'     This code was generated by a tool.

'     Runtime Version:4.0.30319.42000

'

'     Changes to this file may cause incorrect behavior and will be lost if

'     the code is regenerated.

' </auto-generated>

'------------------------------------------------------------------------------



Option Strict On

Option Explicit On





Namespace My



    <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _

     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0"), _

     Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _

    Partial Friend NotInheritable Class MySettings

        Inherits Global.System.Configuration.ApplicationSettingsBase



        Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings), MySettings)



#Region "My.Settings Auto-Save Functionality"

#If _MyType = "WindowsForms" Then

        Private Shared addedHandler As Boolean



        Private Shared addedHandlerLockObject As New Object



        <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _

        Private Shared Sub AutoSaveSettings(ByVal sender As Global.System.Object, ByVal e As Global.System.EventArgs)

            If My.Application.SaveMySettingsOnExit Then

                My.Settings.Save()

            End If

        End Sub

#End If

#End Region



        Public Shared ReadOnly Property [Default]() As MySettings

            Get



#If _MyType = "WindowsForms" Then

                   If Not addedHandler Then

                        SyncLock addedHandlerLockObject

                            If Not addedHandler Then

                                AddHandler My.Application.Shutdown, AddressOf AutoSaveSettings

                                addedHandler = True

                            End If

                        End SyncLock

                    End If

#End If

                Return defaultInstance

            End Get

        End Property

    End Class

End Namespace



Namespace My

    

    <Global.Microsoft.VisualBasic.HideModuleNameAttribute(),  _

     Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _

     Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute()>  _

    Friend Module MySettingsProperty

        

        <Global.System.ComponentModel.Design.HelpKeywordAttribute("My.Settings")>  _

        Friend ReadOnly Property Settings() As Global.Signing.My.MySettings

            Get

                Return Global.Signing.My.MySettings.Default

            End Get

        End Property

    End Module

End Namespace


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