Converting pdf. to Word

I very occasionally (like now for instance) need to convert a pdf file to Word but, I really don't want to be paying a regular monthly premium for the software.

Can anyone tell me please if it is possible to pay for a very basic version of the Adobe converter without the need to commit to a monthly outlay.

This time I am trying to convert a scanned image from pdf to Word.

I have tried the free version but it doesn't seem to make a very good job of it.

Any help/guidance offered will be very much appreciated.  Thank you