Png Vs Image File. To retain full transparency save a png file as png 24 and not png 8. Png also supports alpha transparency soft edges and started as a web graphics replacement for gif.
For the general marketer the main difference to understand between a png and jpg is that a png can have a transparent background and is generally larger and higher quality. Svg supports animation transparency gradients and is easily scalable without losing quality. Unlike jpeg which relies on dct compression.
Like jpeg it can support 16 million colors 16 777 216.
Lossless compression is necessary when you have images that are still in the editing process. Nowadays png files are the most preferred raster image file format used especially for use on the web. Pdf the portable document format pdf is the industry standard for document sharing as it creates an exact replica of any file you want to duplicate including images. Jpegs are lossy meaning they reduce file size but also the quality of the images when you use the format.
