Short answer: Copy-paste the HTML code rather than the rendered signature
A client of mine created a brand new signature combining images, text and links, in HTML format.
Blog (EN)
Did you know that it's possible to tell Finder to search the current folder rather than the entire file system?
By default, regardless of the folder you're currently in, using the Search bar (top right corner) will show results across the entire file system (aka This Mac).
To look for results in the current folder, you then need to click on its name (i.e. "Newsflash")
Did you know that since iOS 14.5 and macOS Big Sur 11.3 it's possible to add tags to your notes?
This is a great way to quickly filter and access notes that may be stored in different folders.
Anywhere in a note, just type the hashtag symbol followed by a word, for instance “#important”
After typing the space, the tags will become yellow.
Did you know that since macOS 10.15 Catalina, it's possible to customise the language for most apps, independently from the operating system language?
This can be useful when, like me, you need to quickly show an app in different languages and you don't want to switch the language of the entire operating system.