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html2canvas + jsPDF cut off image

I can't get the problem fixed that my image is always cut off in the PDF file. The PDF size seems to be correct but I can't see my entire page as an image.
I have been trying for hours but without success.
Code:
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.3/jspdf.min.js"></script>
<script src="https://html2canvas.hertzen.com/dist/html2canvas.js"></script>
<script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
<script>
function addWaterMark(pdf) {
var totalPages = pdf.internal.getNumberOfPages();
for (i = 1; i <= totalPages; i++) {
pdf.setPage(i);
pdf.addImage("data:image/png;base64,......", "JPEG", 20, 40, 130, 30);
}
return pdf;
}
function getPDF(){
var HTML_Width = $("div#mycontent").width();
var HTML_Height = $("div#mycontent").height();
var top_left_margin = 100;
var PDF_Width = HTML_Width+(top_left_margin*2);
var PDF_Height = $("div#mycontent").height();
var canvas_image_width = HTML_Width;
var canvas_image_height = HTML_Height/1.1;
var totalPDFPages = Math.ceil(HTML_Height/PDF_Height)-1;
html2canvas($("div#mycontent")[0],{allowTaint:true},{pagesplit: false},{scrollY: -window.scrollY}).then(function(canvas) {
canvas.getContext('2d');
console.log(canvas.height+" "+canvas.width);
var imgData = canvas.toDataURL("image/jpeg", 0.99);
var pdf = new jsPDF('p', 'pt', [PDF_Width, PDF_Height]);
pdf.addImage(imgData, 'JPEG', top_left_margin, top_left_margin,canvas_image_width,canvas_image_height);
pdf = addWaterMark(pdf);
pdf.save("test.pdf");
});
};
</script>
Now:
Image Now
What i want:
Image what i want
In Developer Tool the Content Height is: 20887
Any Solution for this?

You could try changing to portrait or landscape according to width-height of the image. I was getting some cut images and it got fixed this way.
If width > height use landscape "l", if height > width use portrit "p":
html2canvas(document.getElementById(id_div)).then(canvas => {
var w = document.getElementById(id_div).offsetWidth;
var h = document.getElementById(id_div).offsetHeight;
var img = canvas.toDataURL("image/jpeg", 1);
if(w > h){
var doc = new jsPDF('l', 'mm', [w+100, h+50]);
}
else{
var doc = new jsPDF('p', 'mm', [h+100, w+50]);
}
doc.addImage(img, 'JPEG', 10, 10);
doc.save('chart.pdf');
}).catch(function(e) {
console.log(e.message);
});

jsPDF save to serverside

My code is working correct. It's capturing and generating the whole page and prompting download too. But I need this to be saved on my server automatically in "uploads/pdfs/" folder. I actually want to send this through php mail and save it on the server instead of prompting. Please help me.
This is my script:
function makePDF() {
var quotes = document.getElementById('container-fluid');
html2canvas(quotes, {
onrendered: function(canvas) {
//! MAKE YOUR PDF
var pdf = new jsPDF('p', 'pt', 'letter');
for (var i = 0; i <= quotes.clientHeight/980; i++) {
//! This is all just html2canvas stuff
var srcImg = canvas;
var sX = 0;
var sY = 1278*i; // start 980 pixels down for every new page
var sWidth = 990;
var sHeight = 1278;
var dX = 0;
var dY = 0;
var dWidth = 990;
var dHeight = 1278;
window.onePageCanvas = document.createElement("canvas");
onePageCanvas.setAttribute('width', 990);
onePageCanvas.setAttribute('height', 1278);
var ctx = onePageCanvas.getContext('2d');
// details on this usage of this function:
// https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Using_images#Slicing
ctx.drawImage(srcImg,sX,sY,sWidth,sHeight,dX,dY,dWidth,dHeight);
// document.body.appendChild(canvas);
var canvasDataURL = onePageCanvas.toDataURL("image/png", 1.0);
var width = onePageCanvas.width;
var height = onePageCanvas.clientHeight;
//! If we're on anything other than the first page,
// add another page
if (i > 0) {
pdf.addPage(612, 791); //8.5" x 11" in pts (in*72)
}
//! now we declare that we're working on that page
pdf.setPage(i+1);
//! now we add content to that page!
pdf.addImage(canvasDataURL, 'PNG', 0, 0, (width*.62), (height*.62));
}
pdf.save('output.php')
}
});
}

How to save the whole webpage in PDF file using javascript

May i ask how to save the whole webpage as PDF file. I already have a script for saving webpage as PDF file but it can't capture the whole webpage. here's the script: My expectation is to save the whole details of webpage
<script>
function wa(){
genPDF(0,0);
}
function genPDF(x,y){
var doc = new jsPDF();
//alert(document.getElementById("paper").clientWidth);//100.26
var paperwidth = 8.5;
var paperheight = 11;
var ppi = parseFloat(document.getElementById("paper").clientWidth)/paperwidth;
var height = ppi.toFixed(2)*paperheight;//instead of 11 inches
var numpages = Math.ceil(parseFloat(document.getElementById("paper").clientHeight)/height.toFixed(2));
window.scrollTo(0,0);
html2canvas(document.getElementById("paper"),{
onrendered:function (canvas){
var x=0;
while (x<numpages)
{
var y = x*height;
window.scrollTo(0,y);
var img = canvas.toDataURL("image/png");
doc.addImage(img,'JPEG',5,5);
doc.addPage();
x=x+1;
}
doc.save('test.pdf');
}
});`enter code here`
}
</script>
Thank you

try to this man
var pdf = new jsPDF('l', 'mm', [canvas.width, canvas.height]);
var width = pdf.internal.pageSize.width;
var height = pdf.internal.pageSize.height;
pdf.addImage(imgData, 'JPEG', 0, 0, width, height);
pdf.save("download.pdf");

Import long html into split PDF

My scenario is:
On clicking a button, import datas on a html into a PDF file.
Since this PDF must have some complicated required style, so my first step is to transfer this page into a image using html2canvas.js and then import this image to a PDF with jsPDF.js
And when the data is too large the PDF must be split to hold all the data,to do this,so I used the codes here: https://github.com/MrRio/jsPDF/pull/397
My problem is: on firefox the splited page on PDF on page 2 or 3...cannot be shown, they are totally blank. but on page 1 it is fine. (this is for firefox)
I tested other browsers they are all fine. pls someone could throw some light on how to fix this?
Here is my plnkr:
http://plnkr.co/edit/ElvAsriK2nssq2U9pgKX?p=preview
function initTemplate(){
datas=getData();
var templateData=_.template($('#tpl').html(), datas);
$('#tplW').html(templateData);
getPDF();
// $('#tplW').append(_.template($('#tpl').html(), datas));
// $('body').html( _.template($('#tpl').html(), datas));
}
function getData(){
var htmlData=$(".MsoNormalTable .inner").find("tr.tablerow");
var datas=[];
$.each(htmlData,function(i,v){
var d=[];
var tds=$(v).find("td");
$.each(tds,function(index,val){
d.push($(val).text());
});
datas.push(d);
});
return datas;
}
function getPDF() {
// initTemplate();
html2canvas($('#tplW')[0], {
onrendered: function(canvas){
canvasToImageSuccess(canvas);
}
});
function canvasToImage (canvas){
var img = new Image();
var dataURL = canvas.toDataURL('image/png');
img.src = dataURL;
return img;
};
function canvasShiftImage (oldCanvas,shiftAmt){
shiftAmt = parseInt(shiftAmt) || 0;
if(!shiftAmt){ return oldCanvas; }
var newCanvas = document.createElement('canvas');
newCanvas.height = oldCanvas.height - shiftAmt;
newCanvas.width = oldCanvas.width;
var ctx = newCanvas.getContext('2d');
var img = canvasToImage(oldCanvas);
ctx.drawImage(img,0, shiftAmt, img.width, img.height, 0, 0, img.width, img.height);
return newCanvas;
};
function canvasToImageSuccess (canvas){
var pdf = new jsPDF('l','px'),
pdfInternals = pdf.internal,
pdfPageSize = pdfInternals.pageSize,
pdfScaleFactor = pdfInternals.scaleFactor,
pdfPageWidth = pdfPageSize.width,
pdfPageHeight = pdfPageSize.height,
totalPdfHeight = 0,
htmlPageHeight = canvas.height,
htmlScaleFactor = canvas.width / (pdfPageWidth * pdfScaleFactor),
safetyNet = 0;
while(totalPdfHeight < htmlPageHeight && safetyNet < 15){
var newCanvas = canvasShiftImage(canvas, totalPdfHeight);
pdf.addImage(newCanvas, 'png', 0, 0, pdfPageWidth, 0, null, 'NONE');
totalPdfHeight += (pdfPageHeight * pdfScaleFactor * htmlScaleFactor);
if(totalPdfHeight < htmlPageHeight){
pdf.addPage();
}
safetyNet++;
}
pdf.save('test.pdf');
};
}

You should use canvas-to-blob and FileSaver.js
and modify this line:
pdf.save('test.pdf');
to this:
var data = pdf.output();
var buffer = new ArrayBuffer(data.length);
var array = new Uint8Array(buffer);
for (var i = 0; i < data.length; i++) {
array[i] = data.charCodeAt(i);
}
var blob = new Blob(
[array],
{type: 'application/pdf', encoding: 'raw'}
);
saveAs(blob, "test.pdf");
You can check it out here.
It worked for me on Mac, Firefox.
I found this solution here.

Display image with canvas tag trouble

I am new with jquery , i have a small project about display image with canvas. All will good , but i have a trouble when try display all image , i try to use .each(function) or loop but not work
This is my trouble , any one can help ?. Thanks
http://jsfiddle.net/NcKfr/6/
<textarea id="textid">blah blah blah</textarea>
<canvas id="ca1" width="640" height="480"></canvas>
<script>
$(document.body).find('*').each(function() {
var tmp = $("textarea").children().remove();
var text = $("textarea").text();
text = text.replace(/<li>/g, "").replace(/<\/li>/g, "").replace(/<br \/>/g, "").replace(/\/>/g, "").replace(/<img/g, "").replace(/ /g, "");
$("textarea").text(text);
$("textarea").append(tmp);
});
</script>
Script code :
$(function(e) {
var data = $("#textid").val();
rows = data.split('src="');
partNum = [];
var i;
var len = rows.length;
var can = document.getElementsByTagName('canvas')[0];
var ctx = can.getContext('2d');
$(document).ready(function() {
for (i = 1; i < len; i++) {
partNum[i] = rows[i].substr(0,rows[i].indexOf('"'));
$.getImageData({
url: partNum[i],
success: function(image) {
// Set the canvas width and heigh to the same as the image
$(can).attr('width', image.width);
$(can).attr('height', image.height);
$(can).css({
'background-color': 'none',
'border-color': '#fff'
});
// Draw the image on to the canvas
ctx.drawImage(image, 0, 0, image.width, image.height);
},
error: function(xhr, text_status) {
// Handle your error here
}
});
}
});
});
success: function(image) {
script = document.createElement('canvas');
var can = document.body.appendChild(script);
If i change code in two line , i can show all image but i can control it load form 1 to 13. Any body can help me fix it ... thanks

Here is a code which will draw images on one canvas one under another.
var url = "http://farm4.static.flickr.com/",
urls = [
"3002/2758349058_ab6dc9cfdc_z.jpg",
"2445/5852210343_d21767f18d.jpg"],
can = $('#canvas').get(0),
ctx = can.getContext('2d'),
canH = 0,
canW = 0,
h = 0,
images = [],
size = urls.length;
// loop via all images
$.each(urls, function (index, img) {
$.getImageData({
url: url + img,
success: function (image) {
images.push(image);
canH += image.height;
canW = Math.max(canW, image.width);
if (images.length === size) {
can.width = canW;
can.height = canH;
$.each(images, function (i, img) {
ctx.drawImage(img, 0, h);
h += img.height;
});
}
}
});
});
You can also check this: http://jsfiddle.net/HcxG3/6/ (looks like the service behind getImageData is currently down).