How to Convert Multiple IGS Files to AI?
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.
2. Load your IGS files
Start reaConverter and add your .igs 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 AI as output format
Select AI from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start IGS to AI 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 AI output.
IGS to AI: what to expect from the conversion
IGS stores a technical drawing with layers and line weights, and AI stores artwork meant for display. Geometry comes across, but drawing conventions such as dimension styles and hatching are flattened into ordinary strokes and fills, which is fine for publishing and awkward if the file needs to go back into CAD.








