@pegasos-sigi2,

I have tried epub-reader, here are my impressions. Where have you got comics marvel.epub ? It is 20 kb only, so your program has nothing to show. If I load with your latest version 9783942920360.epub, in german, there is a big memory leakage. The pointer is in busy state for 3 seconds and 1 gb of memory disappears. With the previous version this very big problem does not occur.

Brumiga