Use HEIC to JPG later
- You need email, web, or broad compatibility.
- A smaller photo file is acceptable.
- Transparency is not relevant.
Tool comparison
Use JPG for broad compatibility and smaller files. Use PNG when avoiding JPG recompression matters and larger output is acceptable.
Decision
Avoid
Do not assume every HEIC variant converts; unsupported codec and color-profile edge cases still need review.
Tools