How to Convert Multiple JXL Images to HPG?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. reaConverter also includes editing tools: resize, crop, rotate, and more.
2. Load your JXL files
Add your JXL files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.
Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.
3. Select HPG as output format
Pick HPG as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.
4. Start JXL to HPG conversion
Start the conversion with one click. reaConverter handles everything and notifies you when it's done.
When the batch finishes, your HPG files are ready in the destination folder you chose earlier.
How JXL and HPG differ in practice
JXL 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 JXL 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.
