I’m trying a new image format for today’s comic– a format that employs lossless data compression called png (portable network graphics) instead of my usual jpeg graphic. I think almost everyone can view the png format, unless you are using an obscure or very old browser. Let me know how you like it. Do you have any trouble seeing my comic? Does it take too long to load? Can you tell the difference?
PNG is considered a better choice than JPEG for storing images that contain text, line art, or other images with sharp transitions. Where an image contains both sharp transitions and photographic parts, a choice must be made between the large but sharp PNG and a small JPEG with artifacts around sharp transitions.
Quotation from Wikipedia.