How to convert PDF to JPEG from file (node for PDF to image API in JavaScript with PDF.co Web API

Learn how to convert PDF to JPEG from file (node to have PDF to image API in JavaScript

The documentation is designed to help you to implement the features on your side. PDF.co Web API was made to help with PDF to image API in JavaScript. PDF.co Web API is the flexible Web API that includes full set of functions from e-signature requests to data extraction, OCR, images recognition, pdf splitting and pdf splitting. Can also generate barcodes and read barcodes from images, scans and pdf.

JavaScript code snippet like this for PDF.co Web API works best when you need to quickly implement PDF to image API in your JavaScript application. Sample code in JavaScript is all you need. Copy-paste it to your the code editor, then add a reference to PDF.co Web API and you are ready to try it! Code testing will allow the function to be tested and work properly with your data.

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

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ConvertPdfToJpegFromFile_AsyncApi.js
      
/*jshint esversion: 6 */ 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"); // The authentication key (API Key). // Get your own by registering at https://app.pdf.co/documentation/api const API_KEY = "***********************************"; // 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 = ""; // Prepare URL for `PDF To JPEG` API call var query = `https://api.pdf.co/v1/pdf/convert/to/jpg`; let reqOptions = { uri: query, headers: { "x-api-key": API_KEY }, 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 #${data.jobId} has been created!`); checkIfJobIsCompleted(data.jobId, data.url); }); function checkIfJobIsCompleted(jobId, resultFileUrlJson) { let queryPath = `/v1/job/check?jobid=${jobId}`; let reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), method: "GET", headers: { "x-api-key": API_KEY } }; 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: ${new Date().toLocaleString()}`); if (data.status == "working") { // Check again after 3 seconds setTimeout(function(){checkIfJobIsCompleted(jobId, resultFileUrlJson)} , 3000); } else if (data.status == "success") { request({ method: 'GET', uri: resultFileUrlJson, gzip: true }, function (error, response, body) { // Parse JSON response let respJsonFileArray = JSON.parse(body); let page = 1; respJsonFileArray.forEach((url) => { var localFileName = `./page${page}.jpg`; var file = fs.createWriteStream(localFileName); https.get(url, (response2) => { response2.pipe(file) .on("close", () => { console.log(`Generated JPEG file saved as "${localFileName} file."`); }); }); page++; }, this); }); } else { console.log(`Operation ended with status: "${data.status}".`); } }) }); }

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