I've been looking for a tool that lets you markup pdf documents with bounding boxes around text and lets you add metadata (like a section number, paragraph numb

I've been looking for a tool that lets you markup pdf documents with bounding boxes around text and lets you add metadata (like a section number, paragraph number, page number) you can use for downstream processing and extracting the text from particular areas to process. Kind of like a reverse LaTeX Document Structure The closest I've come in the past is manually setting xy coordinates to do crops in pdftotext which was pretty time consuming. I'm sure it wouldn't be too difficult (famous last words) to use annotation objects with structure codes or some such but I'm surprised even after all these years that there isn't something that lets you do this more simply.