This image is ineligible for copyright and therefore is in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Very general; it just says the image does not qualify for copyright protection as it fails to pass the threshold of originality. Use this template when there are no better options.
Use only on a raster images showing a letter, or words, that represent the use-case of a font. The aim of the image must be to show the font, not what the text says or means. Text must not meet the threshold of originality because of its literary significance.