How to Convert Multiple HEIC Images to HPG?
1. Download and Install reaConverter
reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Built-in editing tools let you resize, crop, or watermark as you convert.
2. Load your HEIC files
Add HEIC files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.
3. Select HPG as output format
Select HPG from the output format list and set your destination folder. You can also adjust quality and compression settings.
4. Start HEIC to HPG conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.
When finished, your new .hpg files will be waiting in the destination folder.
How HEIC and HPG differ in practice
HEIC is made of pixels and HPG is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a HPG container, and that determines whether a CAD or design tool can work with it. One HEIC file can hold several pages or frames, while HPG 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.
