Important Update
These simple tutorials explain the code material for beginners and advanced programmers who are using C#. ByteScout Cloud API Server was designed to assist PDF splitting API in C#. ByteScout Cloud API Server is the ready to deploy Web API Server that can be deployed in less than thirty minutes into your own in-house Windows server (no Internet connnection is required to process data!) or into private cloud server. Can store data on in-house local server based storage or in Amazon AWS S3 bucket. Processing data solely on the server using built-in ByteScout powered engine, no cloud services are used to process your data!.
Want to learn quickly? These fast application programming interfaces of ByteScout Cloud API Server for C# plus the instruction and the code below will help to learn how to split PDF from URL asynchronously. This C# sample code can be used by copying and pasting into your project. Once done,just compile your project and click Run. Writing C# application mostly includes various stages of the software development so even if the functionality works please check it with your data and the production environment.
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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using System;
using System.IO;
using System.Net;
using Newtonsoft.Json.Linq;
using System.Threading;
// 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.
// Cloud API asynchronous "Split PDF" job example.
// Allows to avoid timeout errors when processing huge or scanned PDF documents.
namespace ByteScoutWebApiExample
{
class Program
{
// Source PDF file to split
const string SourceFileUrl = @"https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-split/sample.pdf";
// Comma-separated list of page numbers (or ranges) to process. Example: '1,3-5,7-'.
const string Pages = "1-2,3-";
// (!) Make asynchronous job
const bool Async = true;
static void Main(string[] args)
{
// Create standard .NET web client instance
WebClient webClient = new WebClient();
try
{
// Prepare URL for `Split PDF` API call
string query = Uri.EscapeUriString(string.Format(
"https://localhost/pdf/split?pages={0}&url={1}&async={2}",
Pages,
SourceFileUrl,
Async));
// 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 JSON file available after the job completion; it will contain URLs of result PDF files.
string resultJsonFileUrl = 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 JSON file as string
string jsonFileString = webClient.DownloadString(resultJsonFileUrl);
JArray resultFilesUrls = JArray.Parse(jsonFileString);
// Download generated PDF files
int part = 1;
foreach (JToken token in resultFilesUrls)
{
string resultFileUrl = token.ToString();
string localFileName = String.Format(@".\part{0}.pdf", part);
webClient.DownloadFile(resultFileUrl, localFileName);
Console.WriteLine("Downloaded \"{0}\".", localFileName);
part++;
}
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())
{
string url = "https://localhost/job/check?jobid=" + jobId;
string response = webClient.DownloadString(url);
JObject json = JObject.Parse(response);
return Convert.ToString(json["status"]);
}
}
}
}
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<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Newtonsoft.Json" version="10.0.3" targetFramework="net40" />
</packages>
60 Day Free Trial or Visit ByteScout Cloud API Server Home Page
Explore ByteScout Cloud API Server Documentation
Explore Samples
Sign Up for ByteScout Cloud API Server Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
60 Day Free Trial or Visit ByteScout Cloud API Server Home Page
Explore ByteScout Cloud API Server Documentation
Explore Samples
Sign Up for ByteScout Cloud API Server Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples