I click image>image size and successfully change ppi and resolution but cannot find any box where I can change 62KB to 24KB. I need help urgently. Many thanks.
Thank you very much for your replies. Frankly speaking, I want to take part in the U.S. DV Lottery program which can only be applied online and they require to submit a photo of 600 x 600 pixels and a file less than 24KB. I scanned a photo and saved it in a file. Then I drew it and submitted but it was rejected because it does not meet the mentioned requirements. (too many pixels and file too big ). Please help.