If you are ever naming images in German, do not use Umlauts (ö, ü, ä). I wish I’d realised this 2 hours ago. That’s how long it took me to figure out why some photos on my yoga and qi gong studio website were missing on the published site.
As a native speaker (I’m not), would you substitute the Umlauted (') vowel for one without, or would you use the vowel + e spelling (uber or ueber zB.)? Would a search engine recognise u+e as ü?