Scanned pages are compared with original pages and post-processed to match the original as closely as possible.
A technician for Harvard College Library's Imaging Services scans a book in the basement of Widener.
Imaging Services digitizes a wide variety of materials, including this letter signed by Booker T. Washington.
Technicians use a weighted chain to maintain the distance between the camera and the page being digitized.
A technician arranges the pages to be scanned.
Glass laid over the book pages keeps them flat.