Can I export RGraph charts to a PDF for download? - Official support forum

Nico · 2025-04-11T13:33:38+01:00

hello is it possible to export some graphs to pdf for download ? kind regards Nico

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RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 17 years old) and has a wealth of features making it an ideal choice to use for showing charts on your website.

New HTML datagrid

In the April 2025 release a new datagrid object was added. This makes it easy to add static or dynamic data tables to your pages. It can be used whether you use the canvas or SVG libraries or entirely standalone.

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Get the latest version of RGraph (version 6.22, 24th June 2025) from the download page. You can read the changelog here. There's also older versions available, minified files and links to cdnjs.com hosted libraries.

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RGraph can be used for free under the GPL or if that doesn't suit your situation there's an inexpensive (£129) commercial license available.

Hi there,

There's no native PDF export functionality - you can only export to an image and that's documented here:

https://www.rgraph.net/install/integration.html#image

You could then use that image (you would probably want to clear the canvas to a white background color first otherwise you'll probably end up with a black background) when generating your PDF. But no native PDF export I'm afraid.

To clear the canvas to a white color you can either use the backgroundColor property if it's available or you can clear the canvas using an API function like this:

new RGraph.Rose({
    id: 'cvs',
    data: [1,2,3,4,5,6,7,8,9],
    options: {
    }
}).on('beforedraw', function (obj)
{
    RGraph.clear(obj.canvas, 'white');
}).draw();