I am trying to make a poster for a Memorial Service - want a 20" x 24" poster.
I cropped a 5 MB picture to the 5 x 6 dimension -- which ended up being about 500 KB.
Then I resized it to 20" x 24" with image resize in PSE14.
The resulting photo still looks great, even when zoomed, and the Pixel sizes are 4000 x 4800 = 19.2 MP.
But the resulting file is only about 2.5 MB -- is this possible, reasonable.
Claudette in round rock
Apart from size - Resolution and number of layers are also a factor in size.