HEIC to TIFF Converter

iPhones save photos as HEIC, which many print labs, older editors, Windows tools and document systems cannot open. TIFF is the lossless format those workflows ask for. This converter decodes each HEIC photo in your browser — natively in Safari, with a built-in HEIF decoder elsewhere — and writes a TIFF with LZW or Deflate compression and the print resolution you choose.

How to use this tool

1. Choose one or more .heic or .heif photos.
2. Keep 300 DPI for print labs, or choose another resolution.
3. Pick LZW (most compatible) or Deflate (smaller), and optionally combine the photos into one multi-page TIFF.
4. Download the TIFF files.

Formula

Print size (inches) = pixels ÷ DPI. Uncompressed size ≈ width × height × 3 bytes; LZW and Deflate are lossless, so they only make the file smaller.

HEIC photos store their pixels with lossy HEVC compression; the TIFF keeps the decoded pixels exactly (8 bits per channel, sRGB). Transparency in a HEIF (iPhone photos have none) is kept as an alpha channel unless you choose to fill it with white or black. Photos with fine grain compress only modestly with LZW, while Deflate usually does a little better. Burst and multi-image HEIF files give their main image unless you tick "every image". The decoder runs with a time limit: if a file stalls, the page says so instead of hanging.

Example

A 12-megapixel iPhone photo of 4032 × 3024 px at 300 DPI prints 4032 ÷ 300 = 13.44 × 10.08 inches (34.1 × 25.6 cm). Uncompressed, its pixels take 4032 × 3024 × 3 = 36,578,304 bytes (about 34.9 MB); with LZW or Deflate the TIFF is smaller, and how much depends on the photo.