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Asked: 2026-05-27T03:45:31+00:00

I’m using the Microsoft.Windows.Controls.Ribbon in my WPF application, and it is stretching the RibbonCommand

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I’m using the Microsoft.Windows.Controls.Ribbon in my WPF application, and it is stretching the RibbonCommand image larger than it is supposed to be. The image is inserted as follows:

<r:RibbonApplicationMenu.Command>
     <r:RibbonCommand LargeImageSource="/Resources/Images/FSRibbon.png" />
</r:RibbonApplicationMenu.Command>

Here is FSRibbon.png: enter image description here
It is a 32×28 32 bit png. I have also tried exactly 32 x 32, as well as a 48 x 48 with empty padding around it. No matter what I do, the ribbon control is displayed as this:

enter image description here

As you can see, it’s getting blown up as though it’s being stretched to a 48×48 canvas. But if I provide a 48×48 image, it blows that up just as much. The RibbonCommand doesn’t provide any way to control the stretch of the image, so there’s nothing like <Image/> object’s Stretch="None" property for me to set. What is going on?

Attempts

I’ve tried this:
enter image description here

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1 Answer

  1. Editorial Team

    This question tipped me off to the fact that WPF isn’t so magical at adapting to different image resolutions (DPI / pixels per inch, etc). The aforementioned question said that the Windows standard is 96 DPI, which I guessed was a synonym for pixels/in. The image I uploaded above happens to be 72 pixels/in.

    I tried converting it to 96 using ‘scale image’ in GIMP (open source image editor), and magically, it started being treated properly.

    enter image description here –> enter image description here

    As if us humble programmers are expected to know this junk :p

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