Looking to turn a HEIC into a RW2 file? Here's the honest answer — and what actually works instead.
You can't convert HEIC to RW2. RW2 is a camera's own RAW format — it only ever comes out of the camera.
RW2 is the raw sensor data a Panasonic camera writes at the moment of capture. It's produced by the camera's own hardware and firmware — software can read it, but nothing can manufacture a genuine RW2 from a finished HEIC.
Your HEIC is a developed, final image. The extra sensor information a RW2 carries — wider dynamic range, full color depth, untouched highlights — was discarded when the photo was first saved, and can't be put back.
RW2 is proprietary to Panasonic. Even other RAW formats (NEF, ARW, RAF…) aren't interchangeable with it — there is no universal "save as RAW" that produces a real RW2.
Every real RAW file is one of these camera-maker-specific formats, written by the camera itself:
HEIC is the high-efficiency format iPhones and iPads use to store photos — about half the size of JPG, but not supported everywhere, so it often needs converting.
How to open HEIC opens on Apple devices and Windows 11; older systems need it converted to JPG/PNG.
Full HEIC format guideRW2 is Panasonic’s raw photo format used by Lumix cameras.
How to open RW2 opens in Lightroom, Photoshop and Panasonic software.
Full RW2 format guideLossless and uncompressed — ideal for editing, archiving and print.
HEIC → TIFFLossless with transparency — perfect for graphics, logos and screenshots.
HEIC → PNGA small, universal photo format that opens everywhere.
HEIC → JPGConvert your RW2 and other camera RAW files to JPG, PNG or TIFF.
Open the converter