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Convert PDF to Black and White Excluding some page - VB.NET

PDF Extractor SDK sample in VB.NET demonstrating ‘Convert PDF to Black and White Excluding some page’

Module1.vb
Imports Bytescout.PDFExtractor

Module Module1

    Sub Main()

        ' Create Bytescout.PDFExtractor.UnsearchablePDFMaker instance
        Dim unsearchablePDFMaker = New UnsearchablePDFMaker()
        unsearchablePDFMaker.RegistrationName = "demo"
        unsearchablePDFMaker.RegistrationKey = "demo"

        ' Load sample PDF document
        unsearchablePDFMaker.LoadDocumentFromFile("sample1.pdf")

        'maker.ImageFormat = EmbeddedImageFormat.JPEG; ' use JPEG for smaller PDF file, but be ready to compression artefacts
        'maker.JPEGQuality = 75; // JPEG quality (1 - 100)
        unsearchablePDFMaker.RenderingResolution = 300  ' larger resolution - longer processing And larger PDF file size

        ' Enable Black And White mode
        unsearchablePDFMaker.Grayscale = True

        ' Enable skipping black And white conversation of pages in range
        unsearchablePDFMaker.KeepSkippedPages = True

        ' "ranges" param Is comma-separated list of page ranges in form "1-4,5,7,8-15,16-". 
        ' Pages covered by it will be converted to Black And White.
        ' Page numbers are 1-based. Ending "-" means "to the last page".
        ' You can also use inverted page numbers adding '!' before the number. E.g. "!1" means "the last page", 
        ' "2-!2" means "from the second to the penultimate page", "!2-" - last two pages
        unsearchablePDFMaker.MakePDFUnsearchable("result.pdf", ranges:="1")

        ' Cleanup
        unsearchablePDFMaker.Dispose()

        ' Open the result PDF file in default associated application
        System.Diagnostics.Process.Start("result.pdf")

    End Sub

End Module
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



Imports System



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("MakeUnsearchablePDF.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

                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", "10.0.0.0"),  _

     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.MakeUnsearchablePDF.My.MySettings

            Get

                Return Global.MakeUnsearchablePDF.My.MySettings.Default

            End Get

        End Property

    End Module

End Namespace


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