> especially since the block sizes are undocumentedly little-endian, while everything else is big-endian. Yes! That stumped me for a long time. Along the way t

> especially since the block sizes are undocumentedly little-endian, while everything else is big-endian. Yes! That stumped me for a long time. Along the way to solving it I found this great Stack Overflow answer where the creator of ADLER32 popped in to give some advice: https://stackoverflow.com/questions/32633486/why-are-png-deflate-block-lengths-being-ignored#comment53120790_32635822 https://stackoverflow.com/questions/32633486/why-are-png-def... "Also just realized that you are that Mark Adler."