File Formats
 

PSD is the default file format of Photoshop..

GIF Due to it’s low file size, gif is a common web file format and suitable for animation.

JPG/JPEG The most used photo and web images format. GIF can include 256 colors, JPG more thaN    16,7 million colors.

PDF Adobe’s Portable Document format.

TIFF accepted file formats for publishing.

 

SO THE CONCLUSION IS TIFF FORMAT HAS THE BIGGEST SIZE AND JPG FORMAT HAS THE SMALLEST SIZE.