Link Search Menu Expand Document

Fillable PDF Forms - C#

PDF Create Fillable PDF Forms sample in C# demonstrating ‘Fillable PDF Forms’

Program.cs
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Net;

namespace ByteScoutWebApiExample
{
    class Program
    {
        // The authentication key (API Key).
        // Get your own by registering at https://app.pdf.co
        const String API_KEY = "**************************";

        // Direct URL of source PDF file.
        // You can also upload your own file into PDF.co and use it as url. Check "Upload File" samples for code snippets: https://github.com/bytescout/pdf-co-api-samples/tree/master/File%20Upload/
        const string SourceFileUrl = "https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/pdf-edit/sample.pdf";
        // PDF document password. Leave empty for unprotected documents.
        const string Password = "";
        // File name for generated output. Must be a String
        const string FileName = "newDocument";

        // Destination File Name
        const string DestinationFile = "./result.pdf";

        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);

            // Controls to be added
            var annotations = new List<object> {
                new { text = "sample prefilled text", x = 10, y =30, size = 12, pages = "0-", type = "TextField", id ="textfield1" },
                new { x = 100, y =150, size = 12, pages = "0-", type = "Checkbox", id ="checkbox2" },
                new { x = 100, y =170, size = 12, pages = "0-", link = "https://bytescout-com.s3-us-west-2.amazonaws.com/files/demo-files/cloud-api/pdf-edit/logo.png", type = "CheckboxChecked", id ="checkbox3" }
            };

            // If enabled, Runs processing asynchronously. Returns Use JobId that you may use with /job/check to check state of the processing (possible states: working, 
            var async = false;

            // Prepare requests params as JSON
            // See documentation: https://apidocs.pdf.co
            Dictionary<string, object> parameters = new Dictionary<string, object>();
            parameters.Add("url", SourceFileUrl);
            parameters.Add("name", FileName);
            parameters.Add("password", Password);
            parameters.Add("async", async);
            parameters.Add("annotations", annotations);

            // Convert dictionary of params to JSON
            string jsonPayload = JsonConvert.SerializeObject(parameters);

            try
            {
                // URL of "PDF Edit" endpoint
                string url = "https://api.pdf.co/v1/pdf/edit/add";

                // Execute POST request with JSON payload
                string response = webClient.UploadString(url, jsonPayload);

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

                if (json["error"].ToObject<bool>() == false)
                {
                    // Get URL of generated PDF file
                    string resultFileUrl = json["url"].ToString();

                    // Download generated PDF file
                    webClient.DownloadFile(resultFileUrl, DestinationFile);

                    Console.WriteLine("Generated PDF file saved as \"{0}\" file.", DestinationFile);
                }
                else
                {
                    Console.WriteLine(json["message"].ToString());
                }
            }
            catch (WebException e)
            {
                Console.WriteLine(e.ToString());
            }
            finally
            {
                webClient.Dispose();
            }

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

PDF.co Web API: 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.

Get your PDF.co API key here!

Download Source Code (.zip)

return to the previous page explore PDF Create Fillable PDF Forms endpoint