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Download and Process file - VB.NET

PDF Renderer SDK sample in VB.NET demonstrating ‘Download and Process file’


Imports System.IO
Imports Bytescout.PDFRenderer

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

        ' Create an instance of Bytescout.PDFRenderer.RasterRenderer object and register it.
        Dim renderer As New RasterRenderer()
        renderer.RegistrationName = "demo"
        renderer.RegistrationKey = "demo"

        ' Input file Url
        Dim inputUrl As String = ""

        ' Get Input Stream
        Dim inpStream As Stream = GetStreamFromUrl(inputUrl)

        ' Load PDF document from stream.

        For i As Integer = 0 To renderer.GetPageCount() - 1
            ' Render document page to PNG image file.
            renderer.Save("image" & i & ".jpg", RasterImageFormat.JPEG, i, 96)

        ' Cleanup

        ' Open the first output file in default image viewer.
    End Sub

    ''' <summary>
    ''' Get stream from Url
    ''' </summary>
    Private Shared Function GetStreamFromUrl(ByVal url As String) As Stream

        Dim oData As Byte() = Nothing

        Using wc As New System.Net.WebClient()
            oData = wc.DownloadData(url)
        End Using

        Return New MemoryStream(oData)

    End Function

End Class

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