How to Convert Multiple HEIC Images to JP2?
1. Download and Install reaConverter
Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required. Built-in editing tools let you resize, crop, or watermark as you convert.
2. Load your HEIC files
Start reaConverter and add your .heic files. The software processes everything locally, so your files never leave your computer.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select JP2 as output format
Select JP2 from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start HEIC to JP2 conversion
Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your JP2 output.
HEIC to JP2: what carries over and what does not
HEIC and JP2 both compress by discarding data, so this is a re-encode rather than a copy. The output is built from already-compressed pixels, and the artefacts of the first encode are carried into the second. Use a high quality setting, and convert from the original whenever you still have it. One HEIC file can hold several pages or frames, while JP2 holds one image each. reaConverter writes a separate output file per page and numbers them, so a single input can produce a whole folder of results.







