How to Convert Multiple AI Files to IGES?
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.
2. Load your AI files
Load your AI files into reaConverter. You can add individual files or point to folders, and the software will queue everything automatically.
Select AIs from a folder or drag-and-drop them directly into the reaConverter window.

3. Select IGES as output format
Pick IGES as output format and choose the destination folder where you want to save new .iges files.

4. Start AI to IGES conversion
Press the Convert button and reaConverter takes care of the rest. Processing time depends on file size and volume.

After processing, find all your new .iges files in the output location. The log shows details for each conversion.
How AI and IGES differ in practice
AI is a design format with no notion of real-world units, while IGES is a drawing format where one unit means one millimetre or one inch. Scale is the thing to watch: the geometry transfers, but the drawing arrives at whatever size the conversion assigns, so check dimensions against a known measurement before machining or plotting from it. One AI file can hold several pages or frames, while IGES 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.










