I would like to use the paragraph indent on my posts, but this also affects images embedded in the content. Is there any way to exclude images from the application of the indentation rule?
What you could do is view your pages/posts with the text editor and make sure all <img> tags which you do not want indented are outside the <p> tags.
But you need to check if switching back to the visual editor doesn’t undo this and wrap images in paragraphs again – making you have to do this check every time you edit the text.