How to convert PDF to PNG from URL for PDF to image API in C# and PDF.co Web API

How to convert PDF to PNG from URL in C# with easy ByteScout code samples to make PDF to image API. 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 helps with PDF to image API in C#. PDF.co Web API is the Rest API that provides set of data extraction functions, tools for documents manipulation, splitting and merging of pdf files. Includes built-in OCR, images recognition, can generate and read barcodes from images, scans and pdf.

The SDK samples like this one below explain how to quickly make your application do PDF to image API in C# with the help of PDF.co Web API. Follow the instruction and copy – paste code for C# into your project’s code editor. Tutorials are available along with installed PDF.co Web API if you’d like to dive deeper into the topic and the details of the API.

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.

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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://bytescout-com.s3.amazonaws.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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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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