Aside from the removed speech bubble text, the quality of the files in this gallery remains lossless. The smaller file size is due to conversion / compression. All b/w files were compressed in such manner.
All text was removed from regular speech bubbles, except for heart symbols. Text outside of speech bubbles, and speech bubbles that contained only moans and such were left untouched.
great, I hope this takes some work away from whoever translates this doujin. Does this have any redraw or did you just remove the text from the balloons?