How to convert DOC to PDF from URL asynchronously for DOC to PDF API in C# and PDF.co Web API

How to convert DOC to PDF from URL asynchronously for DOC to PDF API in C#: Step By Step Tutorial

Today you are going to learn how to convert DOC to PDF from URL asynchronously in C#. PDF.co Web API was made to help with DOC to PDF API in C#. 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.

The SDK samples like this one below explain how to quickly make your application do DOC to PDF API in C# with the help of PDF.co Web API. This C# sample code should be copied and pasted into your project. After doing this just compile your project and click Run. You can use these C# sample examples in one or many applications.

Trial version of ByteScout is available for free download from our website. This and other source code samples for C# and other programming languages are available.

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Program.cs
      
using System; using System.IO; using System.Net; using System.Threading; using Newtonsoft.Json.Linq; // Cloud API asynchronous "DOC To PDF" job example. // Allows to avoid timeout errors when processing huge or scanned PDF documents. 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 = "***********************************"; // Direct URL of source DOC or DOCX file. const string SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/doc-to-pdf/sample.docx"; // 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 `DOC To PDF` API call string query = Uri.EscapeUriString(string.Format( "https://api.pdf.co/v1/pdf/convert/from/doc?name={0}&url={1}&async={2}", Path.GetFileName(DestinationFile), SourceFileUrl, 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"]); } } } }

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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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