Symptoms

After the recognition in FineReader PDF for Mobile using preserve text formatting mode, the resulting file's pages have different paper sizes. 

Cause

The online recognition is held via online service where the paper size can not be selected or specified. The page size is recalculated after recognition, which can lead to different sizes of pages. 

Resolution

The issue is known to the Research and Development department. If the situation is fixed in one of the updates, it will be announced on the corresponding pages in the App Store or Google Play.