WebThumb now has the ability to produce PNGs instead of JPEGs for snapshots. The PNGs are about twice the size of the JPEGs but they offer less artifacts and a much crisper thumbnail. Turning on PNG output makes a thumbnail cost 2 credits, to enable PNG output just add an output_type tag with a value of png. And example is shown below.
<webthumb>
<apikey>apikey here</apikey>
<request>
<url>webthumb.bluga.net</url>
<output_type>png</output_type>
</request>
</webthumb>
This is a really good news!
The bad news is that they “cost” 2 credits…
Compared to full thumb or big size thumbnails this is a big cost.
A question: What about a full thumb in png?
Does it cost 2 or 4 credits?
Simone: The good news is once you use any 2 credit feature you get the rest for free. So you can use full thumb and png for the same 2 credits.
Excellent!