With Doc-To-Help 2007, there are two types of source documents: single topic and multiple topic. Single topic documents allow you have only one topic, while multiple topic documents allow you to have as many topics as necessary. In a multiple topic document, you define your topics using paragraph styles. A topic consists of all text and graphics beginning with the topic title and ending just before the next active paragraph style. The end of file marker terminates the last topic in a source document.

In a single topic document, the topic is defined by the document's Title and Style properties. This tells Doc-To-Help the title and position of the topic in the table of contents hierarchy.

For additional information on the types of source documents, see Doc-To-Help 2007 Source Documents.