I also tried setting width and height on the tag but that did not make a difference.

I thought I had it working at one point by setting the viewBox to the same size as the bounding rect, but it does not work properly now unless I scale the bounding rect to be smaller. Where the 'Hello There!' is the SVG item scaled to fit properly into the bounding rect area. There is a table on there that shows you the resolutions you can use. Here is what it looks like with the drawText line commented out since that line is only showing the bounding rect was calculated properly: Before you start rendering make sure your screen size is at least 1280×720 or YouTube won’t encode your video in 60 FPS, use this article from YouTube as reference for your resolution (screen size). I’ve found that editing the SVG file to use em units in these two attributes fixes any rendering issues in Firefox. Webkit-based browsers seem to scale the SVG perfectly, regardless. tViewBox(QRectF(0,0,br.width() * 0.68, br.height()) // Sort of makes my svg the proper width, but breaks when using other font styles. This actually causes it to render early in Firefox, before the graphic has scaled to match the em sizes in background-size. tViewBox(QRectF(0,0,br.width(), br.height()) // Tried this line also but did not make any difference. Painter.drawRect(0, -br.height(), br.width(), br.height()) It is a scriptable object that inherits from ‘RenderPipelineAsset’. The URP Asset controls several graphical features and quality settings for the Universal Render Pipeline. QRectF br = painter.boundingRect(0,0,0,0, Qt::AlignLeft, 'Hello There!) To use the Universal Render Pipeline (URP), you have to create a URP Asset and assign the asset in the Graphics settings. To make sure I wasn't doing something odd I do the following inside an empty QDialog PaintEvent function using text only below to show my issue. I load the svg file just fine into a QSVgRenderer, but when I actually render the SVG data on screen it is smaller than expected.

So I am using some SVG files to show graphics in my Qt application.

Paintcode render at any size