Png Vs Image Format. It is the best image format for transparent background or drop shadows partial transparency for fantastic effects. An acronym for portable network graphics png is a lossless file format designed as a more open alternative to graphics interchange format gif.
The main difference between png and jpeg is that png is a lossless image format while jpeg is a lossy one. Png images use a lossless compression format so when they re compressed for storage no quality is lost. The reason is because the compression is lossy which means that certain unnecessary information is permanently deleted.
The highest quality image format available is the tiff since all images are uncompressed.
To retain full transparency save a png file as png 24 and not png 8. It has a high quality that works in any image. A jpg does however allow you to create smaller file size than you could with a png. Png will help save both photo quality and details.
