Change the Size of an Image for the screen
GIMP Used for Image Scaling Use Image → Scale Image to open the “ Scale Image ” dialog. You can right click on the image to open the menu, or use the menu along the top of the Image window. Notice that the “ Scale Image ” menu item contains three dots, which is a hint that a dialog will be opened. Dialog for Image Scaling in Pixels The unit of size for the purpose of displaying an image on a screen is the pixel. You can see the dialog has two sections: one for width and height and another for resolution . Resolution applies to printing only and has no effect on the image's size when it is displayed on a monitor or a mobile device. The reason is that different devices have different pixels sizes and so, an image that displays on one device (such as a smartphone) with a certain physical size, might display on other devices (such as an LCD projector) in another size altogether. For the purpos...