How to display an image in two pages in PDF using jsPDF?

Question

I have a html page. In which I have a button , whenerever I click this button it will convert the entire html page into data image using html2canvas and placed it into PDF u

Answer 1

I've updated the code. Now works with multiple pages and more precise cuts without happen black background at the end of the cropped image.

Code

$('#pdf').on('click', function(){

    html2canvas(document.body, {
        onpreloaded: function(){
              $("#barra").hide(); 
        },
        onrendered: function(canvas) {
            $("#page").hide();
            var imgData = canvas.toDataURL('image/jpeg');              
            options = {
                orientation: "0",
                unit: "mm",
                format: "a4"
            };
            var doc = new jsPDF(options, '', '', '');
            doc.addImage(imgData, 'jpeg', 10, 10, 190, 0);
            var corte = 1620; // configura tamanho do corte
            var image = new Image();
            image = Canvas2Image.convertToJPEG(canvas);

            var croppingYPosition = corte;
            var count = (image.height)/corte;


            for (var i =1; i < count; i++) {
                    doc.addPage();
                    var sourceX = 0;
                    var sourceY = croppingYPosition;
                    var sourceWidth = image.width;
                    var sourceHeight = corte;
                    var destWidth = sourceWidth;
                    var destHeight = sourceHeight;
                    var destX = 0;
                    var destY = 0;
                    var canvas1 = canvas;
                    canvas1.setAttribute('height', (image.height)-(corte*i));
                    canvas1.setAttribute('width', destWidth);                         
                    var ctx = canvas1.getContext("2d");
                    ctx.drawImage(image, sourceX, 
                                         sourceY,
                                         sourceWidth,
                                         sourceHeight, 
                                         destX, 
                                         destY, 
                                         destWidth, 
                                         destHeight);
                    var image2 = new Image();
                    image2 = Canvas2Image.convertToJPEG(canvas1);
                    image2Data = image2.src;
                    doc.addImage(image2Data, 'JPEG', 10, 10, 190, 0);
                    croppingYPosition += destHeight;              
                }     


            doc.save('sample-file.pdf');
            $('canvas').remove();
            $('canvas1').remove();
            $("#page").show();
            $("#barra").show();
        }
    });
});