The way I've handled this in the past was to either create a new picture just just the size that I need and use that for the Label. If, however, you want to scale it on the fly, I believe you will have to go with Image Magick or GD

In reply to Re: can you scale an image to size with Tk's Photo method? by gri6507
in thread can you scale an image to size with Tk's Photo method? by marcz908

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