GIMP tools - BDA

GIMP 30
The resolution parameter according to X and Y is entered into fields X resolution and Y
resolution.
The closed chain icon
means that the values are linked together, i.e. if you set the size
in field X, the value of field Y will be the same. The open chain icon means that you
can enter different values in fields X and Y, i.e. their values are not linked together. The
unit of measurement of resolution depends on your selection in the drop-down list
(pixels per inch, pixels per millimetre, etc.).
If you press the More button, a Unit Selection dialog opens and you can choose other
units of measurement:
The higher the resolution is, the better the image and colours you get. However, always
remember that a higher-resolution image takes more space and requires more editing
time. Such a file is printed longer, but low resolution may lead to pixelation.
Before choosing resolution, think about where the image will be used (for printing,
publishing on the Internet, displaying on the monitor) because the value of the
parameter depends on it. High resolution is over 300 dpi, low – within a range of 72–96
dpi. The higher the resolution is, the better the quality of an image you have. The display
of an image on the monitory depends on its size, also on the size and resolution of the
monitor.
If the resolution of an image is higher than of the monitor, the image on the monitor will
be larger than its printing size.