How to make pdf file based on class size (html2pdf)

Question

I use html, javascript and lib html2pdf

How to make pdf files according to class size (html2pdf)

function generatePDF(){
var element = document.getElementById('purchase-paper');
var opt = {
    margin: 1,
    filename: 'test.pdf',
    image: {type:'jpeg',quality:0.98},
    jsPDF: {unit:'in',format:'letter',orientation:'portrait'}
};
html2pdf().set(opt).from(element).save();
console.log("Test")};

I only want to export pdf 1 page.

Answer 1

Try this:

function generatePDF(){
      
    var element = document.getElementById('purchase-paper');
    var opt = {
        margin: 1,
        filename: 'test.pdf',
        image: {type:'jpeg',quality:0.98},
        jsPDF: {unit:'in',format:'letter',orientation:'portrait'},
        pageBreakBefore: function(currentNode, followingNodesOnPage, nodesOnNextPage, previousNodesOnPage) {
            if (currentNode.id === 'purchase-paper') {
                return true;
            }
            return false;
        }
    };
    html2pdf().set(opt).from(element).save();

}