Reply To: Setting the post Featured Image based on (PDF) File upload field thumbnail

• Uli Linn

• March 17, 2022 at 5:14 am

I found part of the problem – my child theme was not active, so the code did not work. Sorry for that …

After activating there is still no thumbnail, but now there is a “replace featured image” button in my post (see screenshot), so something happend to the post. But it does not to seem a vaild image file.

chrome_2022-....png