Module1.vb
Imports System.IO
Imports System.Net
Imports Newtonsoft.Json.Linq
Module Module1
' (!) If you are getting '(403) Forbidden' error please ensure you have set the correct API_KEY
' The authentication key (API Key).
' Get your own by registering at https://secure.bytescout.com/users/sign_up
Const API_KEY As String = "***********************************"
' Direct URL of source PDF file.
Const SourceFileUrl As String = "https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/pdf-to-json/sample.pdf"
' 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 JSON file name
const DestinationFile as string = ".\result.json"
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 JSON` API call
Dim query As String = Uri.EscapeUriString(String.Format(
"https://bytescout.io/v1/pdf/convert/to/json?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 JSON file
Dim resultFileUrl As String = json("url").ToString()
' Download JSON file
webClient.DownloadFile(resultFileUrl, DestinationFile)
Console.WriteLine("Generated JSON 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