Important Update
The documentation is written to assist you to apply all the necessary features on your side. PDF information API in VB.NET can be applied with ByteScout Cloud API Server. ByteScout Cloud API Server is API server that is ready to use and can be installed and deployed in less than 30 minutes on your own Windows server or server in a cloud. It can save data and files on your local server-based file storage or in Amazon AWS S3 storage. Data is processed solely on the API server and is powered by ByteScout engine, no cloud services or Internet connection is required for data processing..
VB.NET code snippet like this for ByteScout Cloud API Server works best when you need to quickly implement PDF information API in your VB.NET application. This VB.NET sample code can be used by copying and pasting into your project. Once done,just compile your project and click Run. Enjoy writing a code with ready-to-use sample VB.NET codes to implement PDF information API using ByteScout Cloud API Server.
ByteScout Cloud API Server – free trial version is available on our website. Also, there are other code samples to help you with your VB.NET application included into trial version.
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Imports System.IO
Imports System.Net
Imports Newtonsoft.Json.Linq
' Please NOTE: In this sample we're assuming Cloud Api Server is hosted at "https://localhost".
' If it's not then please replace this with with your hosting url.
Module Module1
' Direct URL of PDF file to get information
Const SourceFileURL As String = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-info/sample.pdf"
' Comma-separated list of barcode types to search.
' See valid barcode types in the documentation https://secure.bytescout.com/cloudapi.html#api-Default-barcodeReadFromUrlGet
Const BarcodeTypes As String = "Code128,Code39,Interleaved2of5,EAN13"
' Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
Const Pages As String = ""
Sub Main()
' Create standard .NET web client instance
Dim webClient As WebClient = New WebClient()
' Prepare URL for `PDF Info` API call
Dim query As String = Uri.EscapeUriString(String.Format(
"https://localhost/pdf/info?url={0}",
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
' Display PDF document information
For Each token As JToken In json("info")
Dim [property] as JProperty = token
Console.WriteLine("{0}: {1}", [property].Name, [property].Value)
Next
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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<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Newtonsoft.Json" version="10.0.3" targetFramework="net40" />
</packages>
60 Day Free Trial or Visit ByteScout Cloud API Server Home Page
Explore ByteScout Cloud API Server Documentation
Explore Samples
Sign Up for ByteScout Cloud API Server Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
60 Day Free Trial or Visit ByteScout Cloud API Server Home Page
Explore ByteScout Cloud API Server Documentation
Explore Samples
Sign Up for ByteScout Cloud API Server Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples