Heyo, to download the software you go to the github page , then click on 'releases' to get to this page: https://github.com/GeneralTekno/PNGTuberPlusResizer/releases
then download the ' PNGPTubePlusReizer.zip ' option , the file will then need to be 'unzipped' by either the default windows extractor, winzip, or 7zip (or something similar), then you use the .zip