This is the same issue as the Letters "Fi" not seen in Reading mode
Hi, while reading the The Not So Short Introduction to LaTeX on my phone using latest Adobe Reader for Android, I've noticed a bug in reading mode, which is super-useful feature.
In reading-mode some characters are omitted and the text make no-sense.
The attached files show the issue with app version and my phone version.
This is a known issue, we shall try to fix it in one of our future releases.
Thank You for your patience.