Thank you for quick reply!
I have been testing 2.9.4beta1 and found a few bugs. When i moved page inside the same pdf to different position, pages got moved to wrong locations, with switched page sizes. This only happens if i try reading page data after moving pages without saving and closing pdf. If pages are moved and pdf then saved, closed and opened again, it works correctly.
Is this correct behavior?
Soon i will test importing pages from different pdfs and report results.
Thank you again for quick response.