Re: Finding out DPI using GD

On Thu, Feb 16, 2006 at 08:31:12AM +1300, Karuna wrote: > dpi is useful in commercial printing. Most printing companies prefer 300dpi > images to make sure the images are printed nice and crisp. While on screen > there is no difference between 72 dpi, and 300 dpi, on paper the difference > can be obvious. This is the very reason I need to know the dpi, since the > intranet application that I'm developing has to do with images that may be > used for commercial printing. Just change the dpi from 72 to 300. If you have a 300x300 pixel image the print size for the 72 dpi will be: 4.167 inch X 4.167 inch The print size for the 300 dpi will be: 1 inch x 1 inch What dpi is stored in the image is rather meaningless. Curt. -- cat .signature: No such file or directory