Extract images from a pdf page #83

Hi everyone !
I am trying to extract all images from a pdf page. I don't know if it is possible, but I would to do something like this website does.
I am currently manipulating the pdf as follows :
const pdfDoc = PDFDocumentFactory.load('pdf/path');
const pages = pdfDoc.getPages();
const existingPage = pages[0];
Thank you four your answers :)