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

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

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ByteScout-PDF-Suite-VB-NET-Searchablepdfmaker-progress-indication-with-pdf-extractor-sdk.pdf

searchablepdfmaker progress indication with pdf extractor sdk in VB.NET and ByteScout PDF Suite

searchablepdfmaker progress indication with pdf extractor sdk in VB.NET

Writing of the code to searchablepdfmaker progress indication with pdf extractor sdk in VB.NET can be done by developers of any level using ByteScout PDF Suite. Searchablepdfmaker progress indication with pdf extractor sdk in VB.NET can be applied with ByteScout PDF Suite. ByteScout PDF Suite is the set that includes 6 SDK products to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript.

The below SDK samples describe how to quickly make your application do searchablepdfmaker progress indication with pdf extractor sdk in VB.NET with the help of ByteScout PDF Suite. If you want to know how it works, then this VB.NET sample code should be copied and pasted into your application’s code editor. Then just compile and run it. Updated and detailed documentation and tutorials are available along with installed ByteScout PDF Suite if you’d like to learn more about the topic and the details of the API.

If you want to try other samples for VB.NET then free trial version of ByteScout PDF Suite is available on our website.

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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