Yes. This is a good use case for batch auto-cropping based on edge color.

Options mentioned by the community:

• Adobe Photoshop: use Trim to remove the uniform white border, then record an Action and run it on the whole folder.
• GIMP: use Autocrop Image in batch mode.
• ImageMagick: its command-line trim function is made for this kind of task.

Because you have thousands of files and the border width varies, an automatic trim/autocrop tool is the right approach. Before processing everything, test on a small copy or “sacrificial” folder first to make sure the crop only removes the border and doesn’t cut into the actual image content.