How to PDF make searchable API for advanced conversion options in VB.NET with PDF.co Web API

How to PDF make searchable API in VB.NET with easy ByteScout code samples to make advanced conversion options. Step-by-step tutorial

Here you may find thousands pre-made source code pieces for easy implementation in your own programming projects. PDF.co Web API was made to help with advanced conversion options 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.

VB.NET code samples for VB.NET developers help to speed up the application’s code writing when using PDF.co Web API. Follow the instruction and copy – paste code for VB.NET into your project’s code editor. Code testing will allow the function to be tested and work properly with your data.

ByteScout free trial version is available for FREE download from our website. Programming tutorials along with source code samples are included.

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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 source PDF file. Const SourceFileUrl As String = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-make-searchable/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 PDF file name Const DestinationFile As String = ".\result.pdf" ' Sample profile that sets advanced conversion options ' Advanced options are properties of SearchablePDFMaker class from ByteScout PDF Extractor SDK used in the back-end: ' https//cdn.bytescout.com/help/BytescoutPDFExtractorSDK/html/5dee0c85-e13d-b93b-ab0f-d4b42ef60756.htm ReadOnly Profiles = File.ReadAllText("profile.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 `Make Searchable PDF` API call Dim query As String = Uri.EscapeUriString(String.Format( "https://api.pdf.co/v1/pdf/makesearchable?name={0}&password={1}&pages={2}&url={3}&profiles={4}", Path.GetFileName(DestinationFile), Password, Pages, SourceFileUrl, Profiles)) 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 PDF file Dim resultFileUrl As String = json("url").ToString() ' Download PDF file webClient.DownloadFile(resultFileUrl, DestinationFile) Console.WriteLine("Generated PDF 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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packages.config
      
<?xml version="1.0" encoding="utf-8"?> <packages> <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net40" /> </packages>

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