Almost perfect. Needs PDF crop/inverse – Yomu EBook Reader Review

I’d be able to quit my endless search for the perfect reader if this one would add PDF cropping (cutting off the blank edges) for when I only have my phone. Also if it would add inverting the colors on a PDF, essentially night mode, turning it to white on black text. See the free and excellent reader Readera to see what I mean, unfortunately only on Android.
Review by UKDNA on Yomu EBook Reader.