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Answers for "display pdf in html using jquery"

Html
2

javascript generate pdf from div content jquery

<!--html-->
<div id="content">
     <h3>Hello, this is a H3 tag</h3>

    <p>A paragraph</p>
</div>
<div id="editor"></div>
<button id="cmd">generate PDF</button>

<!--import the script-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.2.0/jspdf.umd.min.js"></script>

<!--the script-->
<script>
var doc = new jsPDF();
var specialElementHandlers = {
    '#editor': function (element, renderer) {
        return true;
    }
};

$('#cmd').click(function () {
    doc.fromHTML($('#content').html(), 15, 15, {
        'width': 170,
            'elementHandlers': specialElementHandlers
    });
    doc.save('sample-file.pdf');
});
</script>
Posted by: Guest on December-23-2020
0

Javascript/Jquery pdf file preview during upload

// Loaded via <script> tag, create shortcut to access PDF.js exports.
var pdfjsLib = window['pdfjs-dist/build/pdf'];
// The workerSrc property shall be specified.
pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://mozilla.github.io/pdf.js/build/pdf.worker.js';

$("#myPdf").on("change", function(e){
	var file = e.target.files[0]
	if(file.type == "application/pdf"){
		var fileReader = new FileReader();  
		fileReader.onload = function() {
			var pdfData = new Uint8Array(this.result);
			// Using DocumentInitParameters object to load binary data.
			var loadingTask = pdfjsLib.getDocument({data: pdfData});
			loadingTask.promise.then(function(pdf) {
			  console.log('PDF loaded');
			  
			  // Fetch the first page
			  var pageNumber = 1;
			  pdf.getPage(pageNumber).then(function(page) {
				console.log('Page loaded');
				
				var scale = 1.5;
				var viewport = page.getViewport({scale: scale});

				// Prepare canvas using PDF page dimensions
				var canvas = $("#pdfViewer")[0];
				var context = canvas.getContext('2d');
				canvas.height = viewport.height;
				canvas.width = viewport.width;

				// Render PDF page into canvas context
				var renderContext = {
				  canvasContext: context,
				  viewport: viewport
				};
				var renderTask = page.render(renderContext);
				renderTask.promise.then(function () {
				  console.log('Page rendered');
				});
			  });
			}, function (reason) {
			  // PDF loading error
			  console.error(reason);
			});
		};
		fileReader.readAsArrayBuffer(file);
	}
});
Posted by: Guest on September-20-2021

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