The PNG file format was introduced quite a while back; it was brought out in the market in 1995/96 to cover the drawbacks of the the common GIF file format. However, it did not make an impression because the early browsers were not designed to support the progressive features of PNG so web designers and creators had to include it in their designs restrictedly. One of the primary hindrances that marred the features of PNG was with Microsoft’s flagship product, Internet Explorer which was by far the most famous browsers of that period; IE had little or no space for PNG support consequently the format could only be used to a bare minimum. Then, the scene changed with the introduction of IE7; this new browser from Microsoft has proved immensely useful in increasing increasing the utility of PNGs. So lets take a look at three reasons why PNG is one of the best image formats around today:
It is possible to create see through images or a property known as alpha transparency: When you compare PNG with GIF, it will become apparent that one of the major differences is that you will only be able to save any odd color transparently through the use of GIF this simply means that the color can be transformed whether opaque or transparent with just transparency in betweenbut when you use PNG, you get a serious advantage; because the format is capable of producing semi transparent pixels. This simply means that you can save a PNG image with a soft drop shadow and then fuse it with a background that suits your taste. The Image can also be used as a gradient background or water mark. The format gives you the option to use the slow fading of colors from fully opaque to see through, exposing the webpage below
They look fantastic: Not only do you get surprising flexibility when using PNG images but also; there are a myriad of other benefits to incorporating this format. For example, when you use a JPEG image, you lose a portion of the data on the original file every time you save the file, so after a while, you will be able to see a conspicuous decline in the appearance of the images. Although, this concern has been resolved in in the file type and you will be able to save the pictures without compromising any data, GIF has a highly restrictive 256 color palette, which renders it quite ineffective if you are going to save a snap shot. But, with PNG, you could get the most desired attributes of both these formats; you get an extensive color display like with JPEG file type and it also supports managed color palette like GIF files. Another advantage is that the compression of the picture is lossless so the image stays put regardless of how many time you save it.
PNG is self optimizing: A serious problem that web designers need to handle very often is the anomaly due to which the brightness and the contrast ratio of the screen has to be regulated to see the images appropriately; this problem occurs due to the difference in the Gamma setting used for the different monitors. Gamma is a technology that helps to scatter the luminance across the screen. However, different operating systems use a variety of Gamma settings. Therefore, multimedia that is color corrected specifically for Windows may not look right on a Mac. Again, in this situation the flexible PNG format can help you out, in PNG, you can store the files with with a Gamma correction feature that is innate so despite the differences in operating systems; the Gamma settings will be changed on its own to display an image with the perfect contrast and brightness.