Apple support
Option A
Strong
Option B
Strong
FAQ Guide
Why Does a HEIC Upload Fail?
HEIC uploads usually fail because the receiving system expects JPG or PNG, even when the photo opens normally on an iPhone.
Quick comparison
Web form support
Option A
Mixed
Option B
Very strong
Best action
Option A
Keep as original
Option B
Convert for upload
Questions and answers
Why does my iPhone photo fail on a website?
Many upload forms validate extensions or MIME types and still do not accept HEIC.
Should I convert to JPG or PNG?
Use JPG for camera photos and PNG for screenshots or graphics.
Will conversion change the image?
It can change format characteristics, but it usually solves compatibility for everyday sharing.