ocr: TIFF5.0 YPosition Tag =287 (11F) Type = RATIONAL The Y offset of the top of the image, with respect to thc top of the page, in ResolutionUnits. In the TIFF coordinate scheme, the positive Y direction is down, so that YPosition is always positive. No default. See also XPosition. An, Akdus/Microsoft Technical Memorandum: 8/8/88 Page. 22