ByteScout Barcode Reader SDK – VB.NET – Decoding barcodes from PDF by pages

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ByteScout Barcode Reader SDK – VB.NET – Decoding barcodes from PDF by pages

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ByteScout-BarCode-Reader-SDK-VB-NET-Decoding-barcodes-from-PDF-by-pages.pdf

How to Decoding barcodes from PDF by pages in VB.NET and ByteScout BarCode Reader SDK

The tutorial shows how to Decoding barcodes from PDF by pages in VB.NET

ByteScout tutorials are designed to explain the code for both VB.NET beginners and advanced programmers. ByteScout BarCode Reader SDK is the SDK for reading of barcodes from PDF, images and live camera or video. Almost every common type like Code 39, Code 128, GS1, UPC, QR Code, Datamatrix, PDF417 and many others are supported. Supports noisy and defective images and docs. Includes optional documents splitter and merger for pdf and tiff based on found barcodess. Batch mode is supported for superior performance using multiple threads. Decoded values are easily exported to JSON, CSV, XML and to custom format. It can Decoding barcodes from PDF by pages in VB.NET.

VB.NET code samples for VB.NET developers help to speed up coding of your application when using ByteScout BarCode Reader SDK. This VB.NET sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! Enjoy writing a code with ready-to-use sample codes in VB.NET.

Free trial version of ByteScout BarCode Reader SDK is available on our website. Documentation and source code samples are included.

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Program.vb

      Imports Bytescout.BarCodeReader

Class Program
	Friend Shared Sub Main(args As String())

        Dim reader As New Reader()
        reader.RegistrationName = "demo"
        reader.RegistrationKey = "demo"

        ' Limit search to 1-dimensional barcodes only (exclude 2D barcodes to speed up the processing).
        ' Change to barcodeReader.BarcodeTypesToFind.SetAll() to scan for all supported 1D and 2D barcode types
        ' or select specific type, e.g. barcodeReader.BarcodeTypesToFind.PDF417 = True
        reader.BarcodeTypesToFind.All1D = True

        ' Input filename
        Dim fileName As String = "example.pdf"

        ' Pages from which barcodes to be fetched
        Dim readFromPages() As Int32 = {1, 2}

        For Each pageNo As Int32 In readFromPages

            Console.WriteLine(Environment.NewLine + "Reading barcodes from PDF page {0}...", pageNo)

            ' Decoding barcodes from PDF on page-by-page basis instead of reading whole page
            Dim barcodes As FoundBarcode() = reader.ReadFrom(fileName, (pageNo - 1))

            ' Found results
            For Each barcode As FoundBarcode In barcodes
                Console.WriteLine("Found Barcode, Type: '{0}', Value: '{1}', Position: {2}", barcode.Type, barcode.Value, barcode.Rect)
            Next

        Next

        ' Cleanup
        reader.Dispose()

        Console.WriteLine()
        Console.WriteLine("Press any key to continue.")
        Console.ReadKey()
	End Sub
End Class