From The Document Foundation Wiki
The method you should use for this purpose depends on whether pictures or drawing objects are involved.
- Pictures have a Print property: right click the picture and then choose Picture (or select the picture and then choose ▸ ▸ and uncheck Print.
- Drawing objects do not have this property. The workaround is to insert a section in the document and to anchor the drawing to this section:
- it is possible to insert a section in a frame
- sections can be hidden on demand via ▸