how to get the size of an image without downloading it?

Why do I get "scanned image will exceed the maximum available memory size on your system" when I try to scan?

• I have an HP G4010 scanner and if I try to scan at a ppi larger than 1200 I get that message. To what memory is it referring? I have 4gb of ram (ok, 3.24gb recognized) and according to Task Manager-Performance, I have 2.6gb available.

• Answer:

  You get that message because at that PPI the image size is larger than your available memory. Since the image has to be created prior to writing to a disk you've asked the computer to do the impossible. Try cutting the PPI in half and see just how large the resulting image is. say you are making an 8x10 picture at 1200 ppi thats 9600 x 12000 pixels or 115,200.000 pixels or 115 MegaPixels and if you multiply that by a reasonable 3 bytes per pixel you are taking a huge picture file size... size matters and ppi matters but you have to balance those to a reasonable file size.