How to Make Progressive JPEGs in Acorn
Link: 2012.03.23 10:03 AM
Duncan Davidson has recently written about creating high dpi images for Safari on the new iPad (3):
Did you know that Acorn can make progressive JPEG images? Just choose the File ▸ Web Export menu item, choose JPEG for the file format and click on the Progressive button:
And now you can display big JPEG images for Safari on your retina iOS devices!
"After reverse engineering the limits and then later being pointed to the documentation about the limits, a birdie dropped a hint into my inbox telling me to try using a progressive JPEG file. Within just a few minutes, several people also chimed in noticing that the large iPad hero image is a progressive JPEG. I’ve not used progressive JPEGs in years, but following the lead of the birdie and the crowd, I gave it a shot. Lo and behold, it’s indeed the ticket to large JPEG joy on the iPad Retina display."
Did you know that Acorn can make progressive JPEG images? Just choose the File ▸ Web Export menu item, choose JPEG for the file format and click on the Progressive button:
And now you can display big JPEG images for Safari on your retina iOS devices!