Sets the DPI for the outgoing pixbuf. Common values are 75, 90, and 300 DPI. Passing a number <= 0 to dpi_x or dpi_y will reset the DPI to whatever the default value happens to be.
Dots Per Inch (aka Pixels Per Inch)
2.8
Sets the DPI for the outgoing pixbuf. Common values are 75, 90, and 300 DPI. Passing a number <= 0 to dpi_x or dpi_y will reset the DPI to whatever the default value happens to be.