ByteScout Cloud API Server – PDF To Image API – JavaScript – Convert PDF To TIFF From File (Node.js) – Async API

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ByteScout Cloud API Server – PDF To Image API – JavaScript – Convert PDF To TIFF From File (Node.js) – Async API

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ByteScout-Cloud-API-Server-JavaScript-Convert-PDF-To-TIFF-From-File-(Node-js)-Async-API.pdf

How to convert PDF to TIFF from file (node for PDF to image API in JavaScript with ByteScout Cloud API Server

How to convert PDF to TIFF from file (node for PDF to image API in JavaScript: Step By Step Instructions

Writing of the code to convert PDF to TIFF from file (node in JavaScript can be done by developers of any level using ByteScout Cloud API Server. ByteScout Cloud API Server was designed to assist PDF to image API in JavaScript. ByteScout Cloud API Server is the ready to use Web API Server that can be deployed in less than 30 minutes into your own in-house server 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 buil-in ByteScout powered engine, no cloud services are used to process your data!.

Use the code displayed below in your application to save a lot of time on writing and testing code. Follow the tutorial and copy – paste code for JavaScript into your project’s code editor. Use of ByteScout Cloud API Server in JavaScript is also described in the documentation given along with the product.

ByteScout Cloud API Server – free trial version is available on our website. Also, there are other code samples to help you with your JavaScript application included into trial version.

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app.js

      /*jshint esversion: 6 */

// 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.

var https = require("https");
var fs = require("fs");

// `request` module is required for file upload.
// Use "npm install request" command to install.
var request = require("request");

// Source PDF file
const SourceFile = "./sample.pdf";
// Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
const Pages = "";
// PDF document password. Leave empty for unprotected documents.
const Password = "";
// Destination TIFF file name
const DestinationFile = "./result.tif";

// Prepare request uri for `PDF To TIFF` API call
var query = `https://localhost/pdf/convert/to/tiff`;
let reqOptions = {
    uri: query,
    formData: {
        password: Password,
        pages: Pages,
        async: 'True',
        file: fs.createReadStream(SourceFile)
    },
};

// Send request
request.post(reqOptions, function (error, response, body) {
    if (error) {
        return console.error("Error: ", error);
    }

    // Parse JSON response
    let data = JSON.parse(body);
    console.log(`Job #${data.jobId} has been created!`);
    checkIfJobIsCompleted(data.jobId, data.url);
});

function checkIfJobIsCompleted(jobId, resultFileUrl) {
    let queryPath = `/job/check?jobid=${jobId}`;
    let reqOptions = {
        host: "localhost",
        path: encodeURI(queryPath),
        method: "GET" 
    };

    https.get(reqOptions, (response) => {
        response.on("data", (d) => {
            response.setEncoding("utf8");

            // Parse JSON response
            let data = JSON.parse(d);
            console.log(`Checking Job #${jobId}, Status: ${data.status}, Time: ${new Date().toLocaleString()}`);

            if (data.status == "working") {
                // Check again after 3 seconds
                setTimeout(function () { checkIfJobIsCompleted(jobId, resultFileUrl) }, 3000);
            }
            else if (data.status == "success") {
                // Download TIFF file
                var file = fs.createWriteStream(DestinationFile);
                https.get(resultFileUrl, (response2) => {
                    response2.pipe(file)
                        .on("close", () => {
                            console.log(`Generated TIFF file saved as "${DestinationFile}" file.`);
                        });
                });
            }
            else {
                console.log(`Operation ended with status: "${data.status}".`);
            }
        })
    });
}

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package.json

      {
  "name": "test",
  "version": "1.0.0",
  "description": "PDF.co",
  "main": "app.js",
  "scripts": {
  },
  "keywords": [
    "pdf.co",
    "web",
    "api",
    "bytescout",
    "api"
  ],
  "author": "ByteScout & PDF.co",
  "license": "ISC",
  "dependencies": {
    "request": "^2.88.2"
  }
}