How to download pdf in node.js

To export or download a PDF file in Node.js, you can make use of various libraries available. One popular library for generating PDF files is "pdfkit." Here's an example of how you can use it to export a PDF file in Node.js:
1. Install the "pdfkit" library by running the following command in your Node.js project directory:
```shell
npm install pdfkit
```
2. Create a new JavaScript file, for example, "pdfExport.js," and require the necessary modules:
```javascript
const PDFDocument = require('pdfkit');
const fs = require('fs');
```
3. Write the code to generate the PDF and save it to a file:
```javascript
// Create a new PDF document
const doc = new PDFDocument();
// Add content to the PDF
doc.fontSize(16).text('Hello, World!');
// Save the PDF to a file
doc.pipe(fs.createWriteStream('output.pdf'));
doc.end();
```
4. Run the script by executing the following command in your terminal:
```shell
node pdfExport.js
```
After running the script, a new file named "output.pdf" will be generated in the same directory, containing the PDF document with the specified content.
You can customize the PDF's content by using the various methods provided by the "pdfkit" library, such as adding text, images, tables, and more. Refer to the library's documentation for more details on its capabilities and options.