The Pixel Aspect Ratio Acid Test

This test checks if the browser respects the Pixel Aspect Ratio metadata contained in the image files. When correctly rendered, all images bellow should have the same dimensions as the references with 1:1 PAR at the top of each set.
You can also change the page zoom level to check if their aspect ratio is affected.
The test was carefully designed so it won't be affected by differences in pixel density either in the image files, or in the output device.

Lennas:


PAR JPG PNG GIF
1:1 Lenna1x1.jpg Lenna1x1.png Lenna1x1.gif
2:1 Lenna2x1.jpg Lenna2x1.png Lenna2x1.gif
Result: Error: Javascript is disabled. Error: Javascript is disabled. Error: Javascript is disabled.
1:2 Lenna1x2.jpg Lenna1x2.png Lenna1x2.gif
Result: Error: Javascript is disabled. Error: Javascript is disabled. Error: Javascript is disabled.


Squares:

PAR JPG PNG GIF
1:1 ShouldBeSquare1x1.jpg ShouldBeSquare1x1.png ShouldBeSquare1x1.gif
2:1 ShouldBeSquare2x1.jpg ShouldBeSquare2x1.png ShouldBeSquare2x1.gif
Status: Error: Javascript is disabled. Error: Javascript is disabled. Error: Javascript is disabled.
1:2 ShouldBeSquare1x2.jpg ShouldBeSquare1x2.png ShouldBeSquare1x2.gif
Status: Error: Javascript is disabled. Error: Javascript is disabled. Error: Javascript is disabled.