When you open a 300+ dpi JPEG or GIF in a raster image editor such as Photoshop or Paint Shop Pro, the image may seem very large and very pixelated. This is because most screen settings default to 72 dpi (dots per inch), and your editor must spread the pixels over a larger surface area to conform to this setting.
To view your image at its correct settings:
Go into the "Scale/Resize Image" area of your editor.
Make sure the "Resample" option is NOT checked. (Very important!)
Reset the resolution to its original dpi (300 dpi or higher for JPEGs, 600 dpi for non-web GIFs). The height and width of the image should scale down proportionally.
If the height and width do not scale down proportionally, click Cancel and try again.
NOTE: See your software's help documentation for specific instructions on resizing and resampling.