Preservation
|
Resolution (dpi) |
Bit depth |
File format |
Book |
600
24 bit color
TIFF
Photograph |
600
24 bit color
TIFF
Slide |
2700 (300 @ 900%)
24 bit color
TIFF
Film |
2700 (300 @ 900%)
24 bit color
TIFF
Overside item (maps, large books, etc.) |
400 or as high as possible
24 bit color
TIFF
OCR
|
Resolution (dpi) |
Bit depth |
File format |
Book |
300
black and white
JPEG or TIFF
GIS
|
Resolution (dpi) |
Bit depth |
File format |
Map |
400 or as high as possible
24 bit color
TIFF
Web
|
Resolution (dpi) |
Bit depth |
File format |
Book/photograph
72-200
24 bit color
JPEG or TIFF
Slide/film
72-200 @ 900%
24 bit color
JPEG or TIFF
Deliverable
|
Resolution (dpi) |
Bit depth |
File format |
Web: thumbnail
72 dpi, size: 120 pixels on longest side
24 bit color
JPEG or GIF
Web: screen-size
72-300 dpi, size: 1024 x 768 pixels
24 bit color
JPEG or GIF
Web: screen-height page image
72-300 dpi, size: 650-850 pixels x proportional pixel height
24 bit color
JPEG or GIF
Print: color
300-400
24 bit color
JPEG or TIFF
Print: black and white
300-400
8 bit grayscale
JPEG or TIFF