Apple Aperture 2 - Manual (Page 572)

572 Part IV Distribution and Backup
To change the design of a page, click the Edit Layout button. You can then work with
the photo boxes and text boxes that appear on the page, resizing and rearranging
them. The Book Layout Editor automatically displays yellow guidelines that show you
how the item you’re working with aligns with other items already on the page.
To add text and images to your pages without changing the page layout, click the Edit
Content button. You can then add images and text to the page, but you can’t move or
resize the boxes on the page, which helps prevent unintended formatting changes.
You can also add photo, text, or metadata boxes to a page when you need them.
Edit Layout button
Drag photo boxes to
different positions.
Edit Content button
Text box added to page