A signature is usually simply the name of somebody written in a stylized fashion. That is not really necessary, however. It is considered a valid signature as long as it adequately records the intent of the parties involved in a contractual agreement. Usually, but not necessarily, a pen makes this mark.
Each printing process is divided into steps that are pre-press, press, and post-press. Prepress operations include steps during which the idea of a printed image is converted into an image carrier, such as a plate, cylinder, or screen.
The most prevalent kind of banner and signage printing used today is probably vinyl printing. You will send your sign maker a pattern or outline with the colors you would like to use when you use vinyl. The vinyl is loaded into a special machine and the pattern you have chosen will be cut.
A printed name is simply the name written out so that it can be read by people (signatures might not be easy to read, so people will ask for both sometimes). A signature is often written in cursive, for things like contracts, checks, etc., it is the individual's own way of writing their name.
An important tool that improves how you communicate with other people is graphic design. It serves to communicate your thoughts in a way that is not only successful, but also beautiful.
Many people use the pre-made logo layouts and elements of Canva, so your logo will not be exclusive to you if you don't change the design and elements heavily. Non-exclusive logos are impossible to trademark. You're also welcome to use your own elements that you upload to Canva to create your logo.
Gutenberg was a German artisan and inventor and is best known for the Gutenberg press, his innovative printing press machine that used a movable form. It remained the standard up until the 20th century. Gutenberg made printing inexpensive.