prince-background-image-resolution: dpi | normal | auto [ , normal | dpi ]?
|Applies to||background image elements|
This property determines the resolution of a background image. The value
means 96dpi, or else the current CSS DPI setting. A custom DPI value can also
be specified. The value
auto means to check the original resolution
of the image. One can specify a second value, as for example
auto, 300dpi in order to check the original resolution of the
image first, and to fall back on the second value if the image doesn't contain
background-image-resolution can be used as a
shorthand for this property.