PDF.co Web API – PDF To Image API – C# – Convert PDF To PNG From URL

PDF.co Web API – PDF To Image API – C# – Convert PDF To PNG From URL

Program.cs

using System;
using System.IO;
using System.Net;
using Newtonsoft.Json.Linq;

namespace ByteScoutWebApiExample
{
	class Program
	{
		// The authentication key (API Key).
		// Get your own by registering at https://app.pdf.co/documentation/api
		const String API_KEY = "***********************************";
		
		// Source PDF file
		const string SourceFileUrl = @"https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/pdf-to-image/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 = "";
		
		static void Main(string[] args)
		{
			// Create standard .NET web client instance
			WebClient webClient = new WebClient();

			// Set API Key
			webClient.Headers.Add("x-api-key", API_KEY);

			try
			{
				// Prepare URL for `PDF To PNG` API call
				string query = Uri.EscapeUriString(string.Format(
					"https://api.pdf.co/v1/pdf/convert/to/png?password={0}&pages={1}&url={2}",
					Password,
					Pages,
					SourceFileUrl));

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

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

				if (json["error"].ToObject<bool>() == false)
				{
					// Download generated PNG files
					int page = 1;
					foreach (JToken token in json["urls"])
					{
						string resultFileUrl = token.ToString();
						string localFileName = String.Format(@".\page{0}.png", page);

						webClient.DownloadFile(resultFileUrl, localFileName);

						Console.WriteLine("Downloaded \"{0}\".", localFileName);
						page++;
					}
				}
				else
				{
					Console.WriteLine(json["message"].ToString());
				}
			}
			catch (WebException e)
			{
				Console.WriteLine(e.ToString());
			}

			webClient.Dispose();


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

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