the current process is as follows:
1. The value in the pdf is extracted from the backend
2, the pdf is converted to HTML and displayed at the front end, and the value is extracted by highlighting the backend
so here comes the problem. The backend extraction is based on pdf extraction. You can only get the x and y values of the extracted element, but not the xpath, of the element. So how can you find the element
based on the x, y values?