PDF to text API in JavaScript and PDF.co Web API

PDF to text API in JavaScript

Today we will explain the steps and algorithm of implementing PDF to text API and how to make it work in your application. PDF to text API in JavaScript can be implemented with PDF.co Web API. 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.

This rich sample source code in JavaScript for PDF.co Web API includes the number of functions and options you should do calling the API to implement PDF to text API. To do PDF to text API in your JavaScript project or application you may simply copy & paste the code and then run your app! Test JavaScript sample code examples whether they respond your needs and requirements for the project.

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ConvertPdfToTextFromUrl.js
      
var https = require("https"); var path = require("path"); var fs = require("fs"); // The authentication key (API Key). // Get your own by registering at https://app.pdf.co/documentation/api const API_KEY = "***********************************"; // Direct URL of source PDF file. const SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-text/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 TXT file name const DestinationFile = "./result.txt"; // Sample profile that sets advanced conversion options // Advanced options are properties of TextExtractor class from ByteScout Text Extractor SDK used in the back-end: // https://cdn.bytescout.com/help/BytescoutPDFExtractorSDK/html/8a2bae5a-346f-8338-b5aa-6f3522dca0d4.htm const Profiles = '{ "profiles": [ { "profile1": { "TrimSpaces": "False", "PreserveFormattingOnTextExtraction": "True", "Unwrap": "True" } } ] }'; // Prepare request to `PDF To Text` API endpoint var queryPath = `/v1/pdf/convert/to/text?name=${path.basename(DestinationFile)}&password=${Password}&pages=${Pages}&url=${SourceFileUrl}&profiles=${Profiles}&async=True`; var reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), headers: { "x-api-key": API_KEY } }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { // Parse JSON response var data = JSON.parse(d); if (data.error == false) { console.log(`Job #${data.jobId} has been created!`); // Process returned job checkIfJobIsCompleted(data.jobId, data.url) } else { // Service reported error console.log(data.message); } }); }).on("error", (e) => { // Request error console.log(e); }); function checkIfJobIsCompleted(jobId, resultFileUrl) { 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: ${new Date().toLocaleString()}`); if (data.status == "working") { // Check again after 3 seconds setTimeout(function () { checkIfJobIsCompleted(jobId, resultFileUrl); }, 3000); } else if (data.status == "success") { // Download TXT file var file = fs.createWriteStream(DestinationFile); https.get(resultFileUrl, (response2) => { response2.pipe(file) .on("close", () => { console.log(`Generated TXT file saved as "${DestinationFile}" file.`); }); }); } else { console.log(`Operation ended with status: "${data.status}".`); } }) }); }

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