Harvard Extension School, Fall 2018
CSCI E-12 Fundamentals of Web Site Development

## Compression for Indexed PNG

PNG images use a different compression algorithm than GIF. Note that for PNG, the vertical and horizontal striped images are the same size.

Format | Horizontal Stripes | Vertical Stripes
--- | --- | ---
PNG | 232 bytes | 221 bytes
GIF | 471 bytes | 911 bytes

Copyright © David Heitmeyer