Use the picture object to add a logo.
1. Choose Insert > Picture (Objects > Insert > Picture).
2. Pull the object to the right size and select an image file (see Chapter Inserting Company Logo).
3. The company logo is only to be printed for PDF output. The logo is not to be printed when outputting to the printer. This means, you select the picture object and enter the "LL.OutputDevice = "PDF" logical condition in the "Appearance Condition" object property.
Also see chapter Overview of LL Variables and LL Fields.