The invisible format switch
Since iOS 11, iPhones save camera photos as HEIC (High Efficiency Image Container) — same quality as JPG at roughly half the size. Inside the Apple ecosystem you never notice. The problem starts when the photo leaves it: a website upload form, an older Windows PC, a web application — and suddenly: "unsupported file type".
Why so many systems reject it
The compression inside HEIC (HEVC) is patent-encumbered, so browsers other than Safari and many server systems never added support. Your CMS's upload form, most job portals and plenty of legacy software simply don't recognize the format — and the error messages rarely explain that the fix is a simple conversion.
Converting HEIC to JPG
- Mac: open in Preview → File → Export → format JPG. For batches: select photos in Finder → right-click → Quick Actions → Convert Image.
- Windows 10/11: open in the Photos app and "Save as" JPG (may prompt to install the free HEVC extension).
- iPhone directly: share to Files, or email the photo to yourself — both convert automatically in many flows. The clean way is the camera setting below.
HEIC import directly in everyimg is on our roadmap — until then, convert first, then drop the JPG here to resize and compress it for its destination.
The permanent fix on your iPhone
Settings → Camera → Formats → "Most Compatible". New photos are saved as JPG and every upload form accepts them. The cost is storage: JPGs are about twice the size. If your storage is tight, keep HEIC and convert on demand — if convenience wins, switch and never think about it again.