In a catalog or brochure you might need little icons for ‘microwave safe’ 
, ‘food safe’,
or ‘hand wash’
… or such like.
Instead of creating inline images manually, you can instead use placeholder words and replace the words with images all at once.
Swimmer is a script for Adobe InDesign which searches your document and swaps key words or phrases for inline images or icons and vice versa.
Running Swimmer again reverts the images back to key words. More info: