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How to create PDF document in Node.js ?

  • Last Updated : 09 Apr, 2021
Geek Week

In this article we will see how to generate PDF document in NodeJS.

Prerequisites:

Step 1: Install PDF module. The PDFkit– It is an Inbuilt Module for generating the PDF documents in the NodeJS in a very simpler and easy way in which we can make graphics, load images and also provide link of the website.

  • For installing it in the project write the following command on the terminal or command prompt.

    npm install pdfkit

Syntax:



const PDFDocument = require('pdfkit');
const doc = new PDFDocument;
  • For adding new page in the PDF.

    doc.addPage()
  • For saving PDF document in root directory.

    doc.pipe(fs.createWriteStream('PDF Name'));

Step 2: Installing Module for setting NodeJS environment. Also we need to configure the packahe.json file.

npm install express

package.json




{
  "name": "node_func",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node app.js",
    "dev": "nodemon app.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "fs": "^0.0.1-security",
    "pdfkit": "^0.11.0"
  }
}

Folder Structure: We can see that the PDF file is created in root directory.

Folder Structure

Example: Here is the JavaScript code that should be written in app.js which is for NodeJS.

index.js




// Importing modules
import PDFDocument from 'pdfkit'
import fs from 'fs'
  
// Create a document
const doc = new PDFDocument();
  
// Saving the pdf file in root directory.
doc.pipe(fs.createWriteStream('example.pdf'));
  
// Adding functionality
doc
   
  .fontSize(27)
  .text('This the article for GeeksforGeeks', 100, 100);
  
// Adding image in the pdf.
  
  doc.image('download3.jpg', {
    fit: [300, 300],
    align: 'center',
    valign: 'center'
  });
  
  doc
  .addPage()
  .fontSize(15)
  .text('Generating PDF with the help of pdfkit', 100, 100);
   
  
   
// Apply some transforms and render an SVG path with the 
// 'even-odd' fill rule
doc
  .scale(0.6)
  .translate(470, -380)
  .path('M 250,75 L 323,301 131,161 369,161 177,301 z')
  .fill('red', 'even-odd')
  .restore();
   
// Add some text with annotations
doc
  .addPage()
  .fillColor('blue')
  .text('The link for GeeksforGeeks website', 100, 100)
    
  .link(100, 100, 160, 27, 'https://www.geeksforgeeks.org/');
   
// Finalize PDF file
doc.end();

Output: Created PDF file will look like this.




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