RightSize checks that .png, .jpg, .jpeg, .gif and .webp files are the size you expect. By that I mean the size of the images in pixels, not the size of the files themselves. In particular, you might use it to check that all your PAD icons are precisely 32x32, or to find all the very large or very large images in your collection. It will also check that files are consistent, e.g. that you have not stored a gif file with a png extension. You can check single files, list To check a single image file is between 32x32 and 64x64 inclusive , type: java.exe -jar C:\com\mindprod\rightsize\rightsize.jar 32 32 64 64 lemon.png You can also list several files on the command line: java.exe -jar C:\com\mindprod\rightsize\rightsize.jar 32 32 64 64 pear.jpg C:\mydir\peach.gif you can check an entire directory of files: java.exe -jar C:\com\mindprod\rightsize\rightsize.jar 32 32 64 64 . Sorry no wildcards, just . , and .. DON'T USE WILDCARDS unless you deeply understand how they work. Windows expands them, not rightsize, and feeds them to rightsize (or any other program) as a giant list of all the directories and files in the current directory. rightsize will thus tend process all the files in your directories, when you just meant to process the files in the current directory. The -s switch makes all subsequent directories searched recursively to include all their subdirectories. e.g. to check that all files in the diretory tree in in the size range 16x32 and 128x100 java.exe -jar C:\com\mindprod\rightsize\rightsize.jar 16 32 128 100 E:\mindprod If you have the jar extension set up as executable, you can abbreviate: C:\com\mindprod\rightsize\rightsize.jar 16 32 128 100 . will fix all *.html files in the mindprod directory tree, ignoring other types of files. If you have the jar extension set up as executable, you can abbreviate: C:\com\mindprod\rightsize\rightsize.jar .

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