Question 1

What is the difference between HEIF and HEIC?

Accepted Answer

HEIF is the format specification. HEIC is Apple's implementation. They're functionally identical — both use HEVC compression.

Question 2

Does resizing affect HEIF quality?

Accepted Answer

Downscaling is generally safe. Use "Image Quality (%)" at 85% or higher for best results when combining resize with compression.

Question 3

Can I compress while resizing?

Accepted Answer

Yes. Under "Image Compression," choose any method. "Target file size (%)" at 50% combined with resize gives dramatic file size reduction.

Question 4

Should I resize as HEIF or convert to JPEG?

Accepted Answer

Keep HEIF for Apple devices and modern platforms — it's more efficient. For universal compatibility, HEIF to JPEG works everywhere.

Question 5

Can I batch resize multiple HEIF files?

Accepted Answer

Yes. Upload multiple HEIF files and resize them all with the same percentage setting.

Resize HEIF