Text pages scanned at 300dpi
Text with Drawings at 600dpi black and white
Schematics at 600dpi black and white
Text with photos at 600dpi grayscale with contrast adjusted
Schematics, board overlays that have color notes at 600dpi 256 colors
The other set is done in resolutions that vary depending on individual page content, but are never higher than needed to produce a useable quickly navigable file that will do the job without consuming more time and resources than are needed.
We include a "foldouts.pdf" with the foldout pages from the manual scanned 17x11". Please note that the foldout pages are ALSO included as ~A4 scans (sectioned as 8.5 x 11" pages, in other words) in the main manual for ease of printing on standard printers. If there are any 26x11" pages, they are scanned in two 17x11" sheets.