Image Fills

Image fill allows you to apply an image to the 2D drafting fills or cover fills.

1. To create a new Image fill, go to Options > Element Attributes > Fill Types. Click New.
2. Select Image fill
3. Load an image.
4. Click the Load Image button to bring up a library directory dialog box. Browse for the desired image and click OK to load it.

At this point, you can edit the image size, mirroring method along with other settings and then click OK.

https://helpcenter.graphisoft.com/guides/archicad-20/archicad-20-reference-guide/documentation/fills/create_or_edit_image_fill/