Sometimes it is necessary to have "remove" a label from the PDF altogether. In order to do so all HTML enabled labels allow you to enter a so called nonbreaking space (nbsp) character. This is slightly different than regular space which would get stripped out of the label text field. To enter those use the following keys:

mac = alt & space
windows = alt & 255

Example

This example removes the fax label for the language German. First we try to enter a regular space where the Salesforce will remove the space character and show the following error message:

If you otherwise use the above key combination you can save the record without any error message: