To insert an image into your diagram, you can access the Import tool from the main menu on the left-hand side:
You can insert images into the target sheet in the following formats:
Tip: Import diagram files as .svg or accepted Visio file formats to enable editing within the Editor.
Images can be rotated by clicking the rotate icon above the shape and dragging.
Importing shapes and templates from other applications
As long as your shapes or templates were exported as PNG, Visio or SVG files from other applications, you can import them into the Editor.
Please Note: Only SVG and Visio stencils will be modifiable.
Saving the diagram as a Stencil will let you use them from the Stencil panel on other diagrams. You can find out how to do so here.
For more information on importing from Visio and cloud-based storage, please visit the pages below.
Editor information before 6/27/18: https://support.cacoo.com/hc/en-us/articles/212778448-The-Editor