Sumatra PDF is a PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, CBR reader for Windows

UseFixedPageUI = true

why does Sumatra changes readings format when changing value UseFixedPageUI = false to true. I would like to have the possibility of text selection through this option. How can i get this fixed?

Thanks for your support.

The FixedPageUI=true is needed for zooming, or selection of fixed text and search. It is the default one in current pre-release as the old legacy eBook reflowing (not fixed for zoom or selection) mode is retiring and currently only used for fall-back when fixedUI can’t draw the text.