ByteScout Premium Suite – VB.NET – Searchablepdfmaker progress indication with pdf extractor sdk

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ByteScout Premium Suite – VB.NET – Searchablepdfmaker progress indication with pdf extractor sdk

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searchablepdfmaker progress indication with pdf extractor sdk in VB.NET using ByteScout Premium Suite

searchablepdfmaker progress indication with pdf extractor sdk in VB.NET

We regularly create and update our sample code library so you may quickly learn searchablepdfmaker progress indication with pdf extractor sdk and the step-by-step process in VB.NET. ByteScout Premium Suite was created to assist searchablepdfmaker progress indication with pdf extractor sdk in VB.NET. ByteScout Premium Suite is the set that includes 12 SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording.

If you want to quickly learn then these fast application programming interfaces of ByteScout Premium Suite for VB.NET plus the guideline and the VB.NET code below will help you quickly learn searchablepdfmaker progress indication with pdf extractor sdk. Just copy and paste this VB.NET sample code to your VB.NET application’s code editor, add a reference to ByteScout Premium Suite (if you haven’t added yet) and you are ready to go! Enjoy writing a code with ready-to-use sample VB.NET codes to implement searchablepdfmaker progress indication with pdf extractor sdk using ByteScout Premium Suite.

Our website gives free trial version of ByteScout Premium Suite. It includes all these source code samples with the purpose to assist you with your VB.NET application implementation.

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Program.vb

      Imports Bytescout.PDFExtractor

Module Program

    Sub Main()

        Try

            Using searchablePDFMaker = New SearchablePDFMaker("demo", "demo")

                ' Load input file
                searchablePDFMaker.LoadDocumentFromFile("sample_ocr.pdf")

                ' Add Progress change event...
                Console.WriteLine("Searchable PDF making in progress: " & vbLf)
                AddHandler searchablePDFMaker.ProgressChanged, AddressOf SearchablePDF_ProgressChanged

                ' Set the location of OCR language data files 
                searchablePDFMaker.OCRLanguageDataFolder = "c:\Program Files\Bytescout PDF Extractor SDK\ocrdata\"

                ' Set OCR language
                searchablePDFMaker.OCRLanguage = "eng"

                ' Set PDF document rendering resolution
                searchablePDFMaker.OCRResolution = 300

                ' Save extracted text to file
                searchablePDFMaker.MakePDFSearchable("output.pdf")

                ' Open output file in default associated application
                System.Diagnostics.Process.Start("output.pdf")
            End Using

        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try

        Console.WriteLine(vbLf & vbLf & " Press enter key to exit...")
        Console.ReadLine()
    End Sub


    ''' <summary>
    ''' Handle progress change event
    ''' </summary>
    Private Sub SearchablePDF_ProgressChanged(ByVal sender As Object, ByVal ongoingOperation As OngoingOperation, ByVal progress As Double, ByRef cancel As Boolean)
        drawTextProgressBar(Convert.ToInt32(progress), 100)
    End Sub

    ''' <summary>
    ''' Display progress bar
    ''' </summary>
    Private Sub drawTextProgressBar(ByVal progress As Integer, ByVal total As Integer)
        'draw empty progress bar
        Console.CursorLeft = 0
        Console.Write("[") ' start
        Console.CursorLeft = 32
        Console.Write("]") ' end
        Console.CursorLeft = 1
        Dim onechunk As Single = 30.0F / total
        Dim position As Integer = 1

        ' draw filled part
        For i As Integer = 0 To onechunk * progress - 1
            Console.BackgroundColor = ConsoleColor.Green
            Console.CursorLeft = Math.Min(System.Threading.Interlocked.Increment(position), position - 1)
            Console.Write(" ")
        Next

        ' draw unfilled part
        For i As Integer = position To 31
            Console.BackgroundColor = ConsoleColor.Gray
            Console.CursorLeft = Math.Min(System.Threading.Interlocked.Increment(position), position - 1)
            Console.Write(" ")
        Next

        ' draw totals
        Console.CursorLeft = 35
        Console.BackgroundColor = ConsoleColor.Black
        Console.Write(progress.ToString() & " of " & total.ToString() & "    ") ' blanks at the end remove any excess
    End Sub

End Module