What about the signature lines? Do you need the names of the witnesses?

No, I don't need the names of the witnesses or the officiant, rabbi or cantor. i only need to know how many witnesses you want and the title of the officiant. Traditionally there are 2 witnesses that sign the ketubah, but often the bride, groom and officiant sign as well, and sometimes with additional witnesses.

On the prints there are signature lines already printed as part of the text as follows:

orthodox has 2 kosher witness lines that are the last 2 lines of the text.

conservative has 2 kosher witnesses, and if there is english then bride, groom & rabbi and any additional witnesses are after the english section.

the 2 egalitarian texts have 2 witnesses, bride and groom. For addition lines for the rabbi, etc., or for extra witnesses please indicate that on the order form.