[gutvol-d] http://epubmaker.pglaf.org/

Is http://epubmaker.pglaf.org the same app the White Washers use for uploaded files? Some people at Distributed Proofreaders think the results are different between the http://epubmaker.pglaf.org/ results and the WW results published at PG. I don't believe it but thought I'd ask here before submitting an opinion to the DP forum. Specifically what they are claiming is that the oversized image (greater than 800 x 1200px or 128KB) reduction for the epub and mobi formats is different. Cheers, Rick