Was thinking the exact same thing today, and posted a topic at: How to do full page analysis with TrOCR (integrating with text segmentation analysis)
I am a complete novice, but believe this is because the TrOCR model is based on single line input?
@nielsr mentioned we could use a separate text line segmentation program to then feed those line-by-line, or bounding box results into TrOCR. Don’t have a clue how to do that, and am hoping he or the other fine folks @huggingface forums might offer some helpful suggestions…