How to create simple picture designs for PowerPoint slides

See also How to make modern picture design in PowerPoint slide.

To create several shapes with one background picture, do the following:

   1.   Add shapes you want to your slide (see How to create a custom shape):

   or   

   2.   To show one picture through all these shapes, just group them:

   2.1.   To group several objects, select them by pressing Ctrl or Shift and clicking each of these objects:

   or   

   2.2.   Do one of the following:

• On the Home tab, in the Drawing group, select the Arrange drop-down list:
  

  Then click the Group command:

  
• Under Drawing Tools, on the Format tab, in the Arrange group, click the Group command:
  
• Right-click one of the objects and choose Group -> Group from the popup menu:
  

PowerPoint puts a single box around the objects instead of a separate box around each object:

   or   

   3.   Right-click on the grouped shape and then choose Format Shape... in the popup menu:

   4.   On the Format Shape pane, on the Shape Options tab, in the Fill & Line group:

• In the Fill section:
  • Choose Picture or texture fill,
  • Click on the File... button and then choose the picture you prefer:
  
• In the Line section, select No line:
  

Add any other adjustments you would like.

See also this tip in French: Comment créer des conceptions d'images simples pour des diapositives PowerPoint.