Why did the AI change my subject's face when I only asked to change their shirt?
Faces aren't automatically protected. If your prompt didn't name the face as something to keep, the model treated it as open to reinterpretation like everything else you didn't name. Add 'keep the face exactly the same' explicitly, and see the dedicated face-drift guide if it keeps happening.
Why do I get a different result every time I submit the same prompt?
That's a separate cause from naming constraints — the same exact prompt can produce a different render on a second run. See the guide on why the same prompt gives a different result for what to do about that specifically.
Do I need to list literally everything in the photo?
No — just the things you'd notice if they moved. Faces, text, logos, hands, and anything with straight lines or a repeating pattern are the highest-risk items. A busy scene needs a longer list than a simple one, but you don't need to enumerate every pixel.
Can I protect more than one thing at once?
Yes — list them all as separate named items in the same prompt: 'keep the face, the background, and the lighting unchanged.' A list of nouns constrains better than one general phrase like 'keep everything else the same.'
Why did the AI add a person who wasn't in my original photo?
This is a distinct failure from drift on existing elements — the model invented someone new rather than altering someone present. It needs its own explicit instruction; see the guide on stopping the AI from adding people.
Is this free to try?
Yes. EditThisPic gives one free Fast edit per week per IP with no signup. Paid packs start at $4.99 for 10 edits.
How much does EditThisPic cost?
You get 1 free edit per week — no account needed. After that, one-time credit packs start at $4.99 for 10 edits, valid 12 months, no subscription. Power users who edit daily can pick Studio Membership, a monthly workspace at $49.99/mo for 300 edits. Purchased downloads are clean with no watermark.