Cloud API - PDF To Text API - VB.NET - Convert PDF To Text From URL - ByteScout
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Cloud API – PDF To Text API – VB.NET – Convert PDF To Text From URL

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Cloud API – PDF To Text API – VB.NET – Convert PDF To Text From URL

Module1.vb

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Imports System.IO
Imports System.Net
Imports Newtonsoft.Json.Linq
 
Module Module1
 
    ' The authentication key (API Key).
    ' Get your own by registering at https://app.pdf.co/documentation/api
    Const API_KEY As String = "***********************************"
 
    ' Direct URL of source PDF file.
    ' Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
    const Pages as String = ""
    ' PDF document password. Leave empty for unprotected documents.
    const Password As string = ""
    ' Destination TXT file name
    const DestinationFile as string = ".\result.txt"
 
    Sub Main()
 
        ' Create standard .NET web client instance
        Dim webClient As WebClient = New WebClient()
 
        ' Set API Key
        webClient.Headers.Add("x-api-key", API_KEY)
 
        ' Prepare URL for `PDF To TXT` API call
        Dim query As String = Uri.EscapeUriString(String.Format(
            "https://api.pdf.co/v1/pdf/convert/to/text?name={0}&password={1}&pages={2}&url={3}",
            Path.GetFileName(DestinationFile),
            Password,
            Pages,
            SourceFileUrl))
 
        Try
            ' Execute request
            Dim response As String = webClient.DownloadString(query)
 
            ' Parse JSON response
            Dim json As JObject = JObject.Parse(response)
 
            If json("error").ToObject(Of Boolean) = False Then
 
                ' Get URL of generated TXT file
                Dim resultFileUrl As String = json("url").ToString()
 
                ' Download TXT file
                webClient.DownloadFile(resultFileUrl, DestinationFile)
 
                Console.WriteLine("Generated TXT file saved as ""{0}"" file.", DestinationFile)
 
            Else
                Console.WriteLine(json("message").ToString())
            End If
 
        Catch ex As WebException
            Console.WriteLine(ex.ToString())
        End Try
 
        webClient.Dispose()
 
 
        Console.WriteLine()
        Console.WriteLine("Press any key...")
        Console.ReadKey()
 
    End Sub
 
End Module

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