How to Convert Multiple PEF Images to STP?
1. Download and Install reaConverter
Install reaConverter for fast PEF conversion. Quick setup, then you're ready to process entire photo shoots. reaConverter also includes editing tools: resize, crop, rotate, and more.
2. Load your PEF files
Open reaConverter and add your PEF files. You can load individual files, entire folders, or even nested subfolders.
Use drag-and-drop, folder browser, or right-click conversion from Explorer.

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

4. Start PEF to STP 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 STP output.
What changes when you convert PEF to STP
PEF files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to STP 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. PEF is made of pixels and STP 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 STP container, and that determines whether a CAD or design tool can work with it.









