Designs made with the Designer to the Letter Stencil tool can be downloaded as SVG files. Most devices can accept SVGs.

Gmail's instructions for downloading are at https://support.google.com/mail/answer/30719?hl=en&co=GENIE.Platform%3DDesktop#zippy=%2Cdownload-an-atta...

On iOS, you can save as a photo or as a file. If you don't see your design in your Photos, open the Files app, tap on Browse then on Downloads. When loa...

You could take a screenshot and load that into Rapid Resizer. On Windows, press the Windows + Print Screen keys. Your screenshot will be in your Picture...

To contribute a design to the public Design Library, use the Share button on the screen where you can enter your design's size. So if you've drawn s...