Custom web and text filters for @Voice Aloud Reader

In version 4.4.4 of @Voice I introduced custom web and text filters, to delete unwanted parts of text from web pages or files saved locally. It's still in early beta-tests and there is no user interface for creating and managing such filters, but if anyone is interesting in exploring their possibilities, please read more here.

new to this so not sure this is the correct place to enter problem -- when open pdf file in ES Explorer app voice alloud duplicates the file -- just started doing this -- does not do this with an Open Office file?