Convert Image Buffer to PDF Buffer on NodeJs

Question

Im working with playwright and i get the image from screenshot:

const image = await elementHandle.screenshot({ 
      fullPage : true,
      clip: {
        width: 1200,
        height: 1500,
      }
    });

It returns me the buffer of an image. So i need to convert the image buffer to pdf buffer.

Already used some plugins but it saves the pdf, and i need just the buffer of it (without saving it).

Like this plugin:

 const pages = [
      image
   ]
imgToPDF(pages, 'A4').pipe(fs.createWriteStream('temp.pdf'));

Any ideas?

Answer 1

I've made it with help of the 'canvas' package: https://www.npmjs.com/package/canvas

import Canvas from 'canvas';

function imageToPdf(imageBuffer) {
  const img = new Canvas.Image();
  img.src = imageBuffer;
  const canvas = Canvas.createCanvas(img.width, img.height, 'pdf');
  const context = canvas.getContext('2d');
  context.drawImage(img, 0, 0, img.width, img.height);
  return canvas.toBuffer();
}