Google is adding a text wrapping feature for images to Docs.

Use a Text & Image component whenever you need to wrap text around an image rather than displaying the image inline. It can also be used to overlay a body of text on an image by specifying a CSS class ...

For that to be effective, though, the image should be set as the background. You may also need to increase transparency so it doesn't overpower the text overlay.

Edit Scanned Documents or Images for PowerPoint The simplest way to edit text in images you're using in PowerPoint is simply to overlay text on or near the image.

When should it be used? Use a Text & Image component whenever you need to wrap text around an image rather than displaying the image inline. It can also be used to overlay a body of text on an image ...