How to get PDF info from URL for PDF information API in VB.NET using PDF.co Web API

How to get PDF info from URL for PDF information API in VB.NET: How To Tutorial

Writing of the code to get PDF info from URL in VB.NET can be done by developers of any level using PDF.co Web API. PDF.co Web API helps with PDF information API in VB.NET. PDF.co Web API is the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

You will save a lot of time on writing and testing code as you may just take the code below and use it in your application. This VB.NET sample code should be copied and pasted into your project. After doing this just compile your project and click Run. Writing VB.NET application typically includes multiple stages of the software development so even if the functionality works please test it with your data and the production environment.

PDF.co Web API – free trial version is on available our website. Also, there are other code samples to help you with your VB.NET application included into trial version.

Try PDF.co Web API today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

Module1.vb
      
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 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() ' Set API Key webClient.Headers.Add("x-api-key", API_KEY) ' Prepare URL for `PDF Info` API call Dim query As String = Uri.EscapeUriString(String.Format( "https://api.pdf.co/v1/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

Try PDF.co Web API today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

packages.config
      
<?xml version="1.0" encoding="utf-8"?> <packages> <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net40" /> </packages>

Try PDF.co Web API today:  60 Day Free Trial (on-premise) or  Web API (on-demand version)

VIDEO

ON-PREMISE VERSION INFORMATION

Get 60 Day Free Trial or Visit PDF.co Web API Home Page

Explore PDF.co Web API Documentation

Get PDF.co Web API Free Training

WEB API

Get Your Free API Key

Explore Web API Documentation

Related Samples: