It’s been about four months since I last posted in this blog about the great, free, web-based optimization tool called punypng. Consequently, I thought I would play around with the tool a bit more tonight to see what might have changed in recent months.
Related to .png optimization, I still have struggled to achieve comparable results to PNGSlim. In my experimentation with the two tools, punypng has consistently only taken about half of the excess file size out of the typical .png image as PNGSlim has. Consequently, I have not used punypng much with .png file optimization.
That said, I have begun to do a great deal more experimentation with punypng related to .jpg output, with very good results! As a recent example, I took all of the .jpg image tiles generated by a tool called Zoomify in the display of a 3D perspective vector-style campus map that our firm had produced for Auraria Higher Education Center in Colorado (USA) during the Summer of 2007.
70 total tiles, which Zoomify saved at 882 KB, were able to be reduced to 803 KB in cumulative size, an improvement of nine percent. Well worth the effort…especially if you are someone who makes HEAVY utilization of the Zoomify tool (as our firm does).
Keep up the great work, Conrad, Kevan, Abe and Matt! I can’t wait to see what’s next related to the punypng tool.
Hi Derek,
I guess one of my issues with pngslim was the amount of time it took to process a set of files, and especially with a service like punypng, it’s a balance between speed vs saving a few bytes. However, we will be releasing a pro version of punypng soon where we will turn up all our compression dials
I was wondering if you could make the particular file(s) that you ran against punypng vs pngslim. We’re always looking to improve our optimization techniques and having a benchmark to work against is always good.
Thanks!
Conrad
Left by Conrad Chu on October 30th, 2009