Signature patterns are pre-set positions for the signatures in a PDF. The patterns were created to facilitate the process of placing signatures in the same place in several PDF documents.

To set one of these patterns, simply set the position of the signature and click on "Save as signature pattern" and introduce the name of the pattern. By doing so it can be reused in following occasions.

To select a signature pattern, click on "Select a pre-set pattern". The position of that pattern will be marked in the PDF preview and you can save it as a signature position.