bboxx(1) on Linux
The text 89e7f53073c8, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
The program outputs the page number and the Bounding Box parameters for every page in the file filename, by postprocessing the output from the gs bbox device.