1) The size of box containing free text annotations will be automatically resized according to the size of the string. The Free text annotation can be selected from the context menu that appears when you right-click the mouse. 2) Any image clipboard can be pasted and their size is adjustable by using mouse. 3) Any object including circle, square, caret, stamp, and image are resizable using the mouse. Even line and free text annotations are now resizable.
source url: https://github.com/sumatrapdfreader/sumatrapdf
Each folder in this GitHub contains a number of files, along with the paths to which they should be copied. Refer to the path and overwrite those files into the folder in the original SumatraPDF project.
1) The executable file allowing double click for creating free text annotation: SumatraPDF.exe 2) The executable file allowing double click for selecting single word: SumatraPDF(raw).exe 3) 32bit excutable file: SumatraPDF(32bit).exe