I have a very simple svg
<div id="printId">
test
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
and trying to print it with html2canvas and jspdf. But whatever I do I get an error
Error loading svg data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3%2F2000%2Fsvg%22%20height%3D%22100%22%20width%3D%22100%22%20style%3D%22-webkit-writing-mode%3A%20horizontal-tb%3B%20-webkit-user-modify%3A%20read-only%3B%20-webkit-user-drag%3A%20auto%3B%20-web
Oe.error @ html2canvas-1.1.2.min.js:20
and test.pdf file with just word test in it.
I googled this for about 3 hours, and in every place people remend settings width/height atributes. Which, as you can see, doesn't help in my case.
I've simplified it as much as I could. Here is the full index.html I use:
<!DOCTYPE html>
<html>
<head></head>
<body>
<div id="printId">
test
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
<script src="../../../script/jsPDF/jspdf-2.3.1.umd.min.js" defer></script>
<script src="../../../script/jsPDF/html2canvas-1.1.2.min.js" defer></script>
<script>
function saveAsPDF(divId, usersName, certNumber = '', type = 'old')
{
const { jsPDF } = window.jspdf;
const pdf = new jsPDF();
var source = document.getElementById("printId");
pdf.html(
source, {
callback: function (pdf) {
pdf.save("test.pdf");
},
});
}
</script>
<input type='submit'
onclick='saveAsPDF();'
value='save'>
</body>
</html>
I also tried all possible versions of html2canvas:
1.1.2
1.1.5
1.2.2
1.3.2
and two versions of jspdf:
2.1.1
2.3.1
And two browsers: Chrome and Opera.
What can be my issue?
Edit: I managed to make html2canvas work on it's own with the document below. Now the question is how to make it work with jspdf together:
<html>
<head></head>
<body>
<div id="printId">
this is circle:
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
<hr>
<h4>Image of above HTML content...</h4>
<div id="canvasImg"></div>
<script src="../../../script/jsPDF/html2canvas-1.3.2.min.js"></script>
<script>
html2canvas(document.getElementById('printId')).then(function(canvas) {
var canvasImg = canvas.toDataURL("image/jpg");
document.getElementById('canvasImg').innerHTML = '<img src="'+canvasImg+'" alt="">';
});
</script>
</body>
</html>
I have a very simple svg
<div id="printId">
test
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
and trying to print it with html2canvas and jspdf. But whatever I do I get an error
Error loading svg data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3%2F2000%2Fsvg%22%20height%3D%22100%22%20width%3D%22100%22%20style%3D%22-webkit-writing-mode%3A%20horizontal-tb%3B%20-webkit-user-modify%3A%20read-only%3B%20-webkit-user-drag%3A%20auto%3B%20-web
Oe.error @ html2canvas-1.1.2.min.js:20
and test.pdf file with just word test in it.
I googled this for about 3 hours, and in every place people remend settings width/height atributes. Which, as you can see, doesn't help in my case.
I've simplified it as much as I could. Here is the full index.html I use:
<!DOCTYPE html>
<html>
<head></head>
<body>
<div id="printId">
test
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
<script src="../../../script/jsPDF/jspdf-2.3.1.umd.min.js" defer></script>
<script src="../../../script/jsPDF/html2canvas-1.1.2.min.js" defer></script>
<script>
function saveAsPDF(divId, usersName, certNumber = '', type = 'old')
{
const { jsPDF } = window.jspdf;
const pdf = new jsPDF();
var source = document.getElementById("printId");
pdf.html(
source, {
callback: function (pdf) {
pdf.save("test.pdf");
},
});
}
</script>
<input type='submit'
onclick='saveAsPDF();'
value='save'>
</body>
</html>
I also tried all possible versions of html2canvas:
1.1.2
1.1.5
1.2.2
1.3.2
and two versions of jspdf:
2.1.1
2.3.1
And two browsers: Chrome and Opera.
What can be my issue?
Edit: I managed to make html2canvas work on it's own with the document below. Now the question is how to make it work with jspdf together:
<html>
<head></head>
<body>
<div id="printId">
this is circle:
<svg height="100" width="100">
<circle cx="50" cy="50" r="40" />
</svg>
</div>
<hr>
<h4>Image of above HTML content...</h4>
<div id="canvasImg"></div>
<script src="../../../script/jsPDF/html2canvas-1.3.2.min.js"></script>
<script>
html2canvas(document.getElementById('printId')).then(function(canvas) {
var canvasImg = canvas.toDataURL("image/jpg");
document.getElementById('canvasImg').innerHTML = '<img src="'+canvasImg+'" alt="">';
});
</script>
</body>
</html>
2 Answers
Reset to default 2It looks like jspdf is not able to add svg as vector graphic to a page. There are three options:
- Use svg2pdf instead of jspdf to convert svg to pdf on it's own.
- Use addSvgAsImage function of jspdf to place an svg in the pdf page manually.
- Convert svg to jpg first, then use jspdf.
I've chosen the 3rd option and wrote a function, which I run before saving canvas as pdf:
htmlToJpg: function()
{
var canvas = document.querySelector('.to-print');
screenWidth = parseFloat(window.getComputedStyle(canvas).width);
var problematic = document.querySelectorAll('.convert-to-jpg');
problematic.forEach(function(el) {
html2canvas(el,
{
scale: 2480/screenWidth // 2480px - size for A4 paper, 300 dpi
}
)
.then(function(canvas) {
var img = canvas.toDataURL("image/jpeg");
el.innerHTML = '<img src="' + img + '" class="img">';
});
});
}
import html2canvas from 'html2canvas';
import { jsPDF as JsPDF } from 'jspdf';
import { useCallback, useEffect } from 'react';
export const useDownloadPdf = (name: string, isReady: boolean) => {
useEffect(() => {
if (isReady) {
const fileName = `${name}.pdf`;
const pdf = new JsPDF({
orientation: 'p',
unit: 'mm',
format: 'a4',
putOnlyUsedFonts: true,
});
const convertElements = document.querySelectorAll('.convert-on-pdf');
const elements = Array.from(convertElements) as HTMLElement[];
if (elements.length > 0) {
Promise.all(
elements.map(async (element) => {
const canvas = await html2canvas(element);
element.replaceWith(canvas);
}),
).then(() => {
pdf.html(document.body, {
callback: (generatedPdf) => {
generatedPdf.save(fileName)
},
});
});
} else {
pdf.html(document.body, {
callback: (generatedPdf) => {
generatedPdf
.save(fileName)
},
});
}
}
}, [isReady, name, setAtribute]);}