How to convert web page to PDF from link asynchronously for HTML to PDF API in C# with PDF.co Web API

Tutorial: how to convert web page to PDF from link asynchronously for HTML to PDF API in C#

Every ByteScout tool contains example C# source codes that you can find here or in the folder with installed ByteScout product. HTML to PDF API in C# can be implemented with PDF.co Web API. 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.

This rich sample source code in C# for PDF.co Web API includes the number of functions and options you should do calling the API to implement HTML to PDF API. This C# sample code should be copied and pasted into your project. After doing this just compile your project and click Run. Writing C# 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 C# application included into trial version.

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

Program.cs
      
using System; using System.IO; using System.Net; using Newtonsoft.Json.Linq; using System.Threading; // Cloud API asynchronous "Web Page to PDF" job example. // Allows to avoid timeout errors when processing heavy web pages. 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 = "***********************************"; // URL of web page to convert to PDF document. const string SourceUrl = "http://www.usa.gov"; // Destination PDF file name const string DestinationFile = @".\result.pdf"; // (!) Make asynchronous job const bool Async = true; 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); // Prepare URL for `Web Page to PDF` API call string query = Uri.EscapeUriString(string.Format( "https://api.pdf.co/v1/pdf/convert/from/url?name={0}&url={1}&async={2}", Path.GetFileName(DestinationFile), SourceUrl, Async)); try { // Execute request string response = webClient.DownloadString(query); // Parse JSON response JObject json = JObject.Parse(response); if (json["error"].ToObject<bool>() == false) { // Asynchronous job ID string jobId = json["jobId"].ToString(); // URL of generated PDF file that will available after the job completion string resultFileUrl = json["url"].ToString(); // Check the job status in a loop. // If you don't want to pause the main thread you can rework the code // to use a separate thread for the status checking and completion. do { string status = CheckJobStatus(jobId); // Possible statuses: "working", "failed", "aborted", "success". // Display timestamp and status (for demo purposes) Console.WriteLine(DateTime.Now.ToLongTimeString() + ": " + status); if (status == "success") { // Download PDF file webClient.DownloadFile(resultFileUrl, DestinationFile); Console.WriteLine("Generated PDF file saved as \"{0}\" file.", DestinationFile); break; } else if (status == "working") { // Pause for a few seconds Thread.Sleep(3000); } else { Console.WriteLine(status); break; } } while (true); } else { Console.WriteLine(json["message"].ToString()); } } catch (WebException e) { Console.WriteLine(e.ToString()); } webClient.Dispose(); Console.WriteLine(); Console.WriteLine("Press any key..."); Console.ReadKey(); } static string CheckJobStatus(string jobId) { using (WebClient webClient = new WebClient()) { // Set API Key webClient.Headers.Add("x-api-key", API_KEY); string url = "https://api.pdf.co/v1/job/check?jobid=" + jobId; string response = webClient.DownloadString(url); JObject json = JObject.Parse(response); return Convert.ToString(json["status"]); } } } }

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: