ByteScout Cloud API Server – PDF Text Search API – C# – PDF Text Search from URL

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ByteScoutWebApiExample.csproj

      
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    <ProjectGuid>{1E1C2C34-017E-4605-AE2B-55EA3313BE51}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>ByteScoutWebApiExample</RootNamespace>
    <AssemblyName>ByteScoutWebApiExample</AssemblyName>
    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
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  <ItemGroup>
    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
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       Other similar extension points exist, see Microsoft.Common.targets.
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</Project>
    

ByteScoutWebApiExample.sln

      

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2013
VisualStudioVersion = 12.0.40629.0
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ByteScoutWebApiExample", "ByteScoutWebApiExample.csproj", "{1E1C2C34-017E-4605-AE2B-55EA3313BE51}"
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Global
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Program.cs

      
using System;
using System.IO;
using System.Net;
using 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.
namespace ByteScoutWebApiExample
{
	class Program
	{
		// Direct URL of source PDF file.
		const string SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-text/sample.pdf";
		
		// Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
		const string Pages = "";
		
		// PDF document password. Leave empty for unprotected documents.
		const string Password = "";
		
		// Search string. 
		const string SearchString = @"\d{1,}\.\d\d"; // Regular expression to find numbers like '100.00'
		// Note: do not use `+` char in regex, but use `{1,}` instead.
		// `+` char is valid for URL and will not be escaped, and it will become a space char on the server side.
        
		// Enable regular expressions (Regex) 
        const bool RegexSearch = true;

        static void Main(string[] args)
		{
			// Create standard .NET web client instance
			WebClient webClient = new WebClient();

            // Prepare URL for PDF text search API call.
            string query = Uri.EscapeUriString(string.Format(
                "https://localhost/pdf/find?password={0}&pages={1}&url={2}&searchString={3}&regexSearch={4}", 
				Password,
				Pages,
				SourceFileUrl,
                SearchString,
                RegexSearch));

			try
			{
				// Execute request
				string response = webClient.DownloadString(query);

				// Parse JSON response
				JObject json = JObject.Parse(response);

				if (json["status"].ToString() != "error")
                {
                    foreach (JToken item in json["body"])
                    {
                        Console.WriteLine({code}quot;Found text \"{item["text"]}\" at coordinates {item["left"]}, {item["top"]}");
                    }
                }
				else
				{
					Console.WriteLine(json["message"].ToString());
				}
			}
			catch (WebException e)
			{
				Console.WriteLine(e.ToString());
			}

			webClient.Dispose();

			Console.WriteLine();
			Console.WriteLine("Press any key...");
			Console.ReadKey();
		}
	}
}

    

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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