JPG .vs. PNG

A summary of comparison between JPEG and PNG

JPEG

Pros

• Smaller file size than PNG
• Widely suppported
• Integrated EXIF support

Cons

• Lossy compression (DCT)
  • Not good as an archival image format
    
    where you needs to edit and save it again and again
  • bad for images with heavy texts and sharp lines
    
    The defined lines tend to get blurred due to anti-aliasing
• Not great for higher-quality CMYK printing
• No transparency support

PNG

Pros

• Lossless compression (LZW)
  • great for screenshots
    
    perfect pixel-for-pixel representation of the screen
  • great for text and line
• Transparency Support
  
  allows you to create images that neatly overlay with the content of an image or website

Cons

• Larger file size than JPEG
• No native EXIF support
  
  Be beated by DNG and TIFF for photography storage