Five Tips For the Effective Use of PNG Images

May 05th, 2008 - 3:42PM

Tip #1: Be Aware of PNG Limitations in Internet Explorer The Portable Network Graphic (PNG) format is well supported by modern browsers (e.g. IE 6+, Firefox 1+ and Opera 5+), except for two issues with Internet Explorer: Graphics tools like Adobe Photoshop save a Gamma correction table in the PNG file that is designed to allow for differences in the brightness of displays. Unlike other browsers, IE uses this table to adjust the brightness of a PNG image and therefore causes color mismatches when viewed alongside CSS colors or images in other formats. This problem is easily corrected by deleting the chunk … Continue reading →