HEIC (High Efficiency Image Container) is the photo format used by iPhones and iPads since iOS 11. It produces smaller file sizes than JPEG while maintaining similar quality. The format is not supported natively on Windows or older Android devices.

Are my HEIC photos uploaded to a server?

No. HEIC decoding and PDF creation both happen in your browser. Your photos never leave your device.

Why does HEIC conversion take a few seconds per photo?

HEIC uses a complex compression algorithm. Decoding it in the browser (using JavaScript) takes 2-4 seconds per image. Server-side tools are faster, but this tool keeps your photos private.

Can I convert HEIF files too?

Yes. HEIF is the container format — HEIC is the most common file extension. Both .heic and .heif files are supported.

Images Tool Box

Conversion

HEIC to PDF Converter Online Free

Convert HEIC and HEIF photos from iPhone or iPad into a PDF document. Batch convert entire camera rolls. Everything runs in your browser — your photos stay on your device.