How to Convert Multiple FIT Images to U3D?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting FIT files in under two minutes. Built-in editing tools let you resize, crop, or watermark as you convert.
2. Load your FIT files
Launch reaConverter and load the FIT files you want to convert. Add a few files or thousands, batch processing handles them all.
Drag-and-drop FITs directly into reaConverter or use the folder browser to load entire directories.
3. Select U3D as output format
Set U3D as output format and select where to save your converted files. Customize quality settings if needed.
4. Start FIT to U3D conversion
Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.
Your converted U3D files will appear in the destination folder as soon as processing completes.
Before you convert FIT to U3D
FIT is made of pixels and U3D 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 U3D container, and that determines whether a CAD or design tool can work with it. One FIT file can hold several pages or frames, while U3D 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.
