4.3.5. Edit Book Background

Add book background

An image can be placed behind a Mz3 book.
Depending on the used variant (Javascript, mz3Viewer) and the size/aspect ratio of the window, the background image behaves differently:

• Javascript
  
  Javascript Portrait
  Javascript Landscape
  
  The image is enlarged to fill the entire window.
  If the page proportions do not match, the background image will be cropped on the too wide / high side (right or bottom).
  

• mz3Viewer
  
  Flash Portrait
  Flash Landscape
  
  The background image is always scaled to match the window in which the Mz3 book is displayed.
  If the aspect ratio of the window and the background image do not match, the background image will be distorted.
  The background image should, therefore, have as much of a similar aspect ratio as the typical window in which the Mz3 book is opened,
  

Therefore, a background image should be chosen that tolerates such distortions.

!People and geometric shapes are not suitable as a background image.

Background color

*As an alternative to a background image, a simple color can be used also: Settings – Configure mz3Viewer Settings – Book Attributes -@bookBgColor@)

As an alternative to a background image, the background can also be filled with a selectable color.
The color actually is used only in the Javascript variant,

Background Color

!In the JavaScript version, no background color is supported yet.

Selection and Add

Choosing a book background image works the same as selecting any other element: Via the browse button! https://manula.r.sizr.io/large/user/14418/img/button-browse.png in the Add Book Background window

The background image must and cannot be positioned.

Clear

The background image can be deleted by calling Commands - Add Book Background again.