I'm used to design a small icon / graphic art, rather than the big size of A3 paper.
So then When i tried to use A3 as the Paper Size with resolution of 300 dpi. The file size is bigger in Photoshop compared to the file size in CorelDraw.
Is there any calculation that we need to use for achieving a smaller size for designing but the image is safe for later use in printing?
file size : more than kilobytes, it's bigger than megabytes.