How to add text and images to PDF in JavaScript using 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.

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app.js

      
var https = require("https"); var path = require("path"); 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 = "***********************************"; // Direct URL of source PDF file. const SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-edit/sample.pdf"; // Search string. const SearchString = 'Notes'; // Prepare URL for PDF text search API call. // See documentation: https://app.pdf.co/documentation/api/1.0/pdf/find.html var queryFindText = `https://api.pdf.co/v1/pdf/find`; let reqOptionsFindText = { uri: queryFindText, headers: { "x-api-key": API_KEY }, formData: { url: SourceFileUrl, searchString: SearchString } }; // Send request request.get(reqOptionsFindText, function (error, responseFindText, bodyFindText) { if (error) { return console.error("Error: ", error); } // Parse JSON response let dataFindText = JSON.parse(bodyFindText); if (dataFindText.body.length > 0) { var element = dataFindText.body[0]; console.log("Found text " + element["text"] + " at coordinates " + element["left"] + ", " + element["top"]); // 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 PDF file name const DestinationFile = "./result.pdf"; // Text annotation params const Type = "annotation"; const X = +element["left"]; const Y = +element["top"] + 25; const Text = "Some notes will go here... Some notes will go here.... Some notes will go here....."; const FontName = "Times New Roman"; const FontSize = 12; const Color = "FF0000"; // * Add Text * // Prepare request to `PDF Edit` API endpoint var queryPath = `/v1/pdf/edit/add?name=${path.basename(DestinationFile)}&password=${Password}&pages=${Pages}&url=${SourceFileUrl}&type=${Type}&x=${X}&y=${Y}&text=${Text}&fontname=${FontName}&size=${FontSize}&color=${Color}`; var reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), headers: { "x-api-key": API_KEY } }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { // Parse JSON response var data = JSON.parse(d); if (data.error == false) { // Download the PDF file var file = fs.createWriteStream(DestinationFile); https.get(data.url, (response2) => { response2.pipe(file).on("close", () => { console.log(`Generated PDF file saved to '${DestinationFile}' file.`); }); }); } else { // Service reported error console.log(data.message); } }); }).on("error", (e) => { // Request error console.error(e); }); } else { console.error("No result found."); } });

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" } }

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