PicPick is a screenshot taking and editing tool. It supports png, jpeg, gif, bmp and pdf files. PicPick has a free version but for automatic updates and commercial usage, users must purchase a license.
Web page: picpick.app
PDF (Portable Document Format) is a commonly used document format created by Adobe. Creating a PDF of a keyboard shortcut list may make it easier to print, quicker to open, and view offline. The PDF output is also without any ads, it's just the basic list presented in two or three columns.
Printing notice: Please consider environmental effect before printing on a paper.