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 good as an archival image format
- 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
- great for screenshots
- 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