How to Convert Multiple ARW Images to IGS?
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. You can also resize, crop, and adjust images during conversion.
2. Load your ARW files
Launch reaConverter and load the ARW files you want to convert. Add a few files or thousands, batch processing handles them all.
Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

3. Select IGS as output format
Select IGS from the output format list and set your destination folder. You can also adjust quality and compression settings.

4. Start ARW to IGS conversion
Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

When the batch finishes, your IGS files are ready in the destination folder you chose earlier.
ARW to IGS: what to expect from the conversion
ARW files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to IGS bakes those decisions into the pixels, and highlight recovery is no longer available afterwards. Set white balance and exposure before the run rather than after. ARW is made of pixels and IGS 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 IGS container, and that determines whether a CAD or design tool can work with it.






