Printed Text

Pictorial Materials

Oversized Materials

Manuscripts

Library of Congress

300 dpi, 1-bit, TIFF ITU-T.6

3,000 to 5,000 pixels

8-bit gray or 24-bit color, TIFF, uncompressed

[Maps]
Color: 300 dpi, 24-bit, TIFF, uncompressed

300 dpi, 8-bit gray or 24-bit color, uncompressed TIFF or JPEG 5:1 compressed

NARA

300 dpi, 8-bit gray, TIFF, uncompressed

3000 pixels—long side, 2700 for square, 8-bit gray/24-bit color, TIFF, uncompressed

200 dpi, 8-bit gray or 24-bit color, TIFF, uncompressed

Columbia

600 dpi, 1-bit, TIFF ITU-T.6

200 to 300 dpi, 8-bit gray or 24-bit color, TIFF

[Large format transparency]
4096x6144, 24-bit, PhotoCD or TIFF

See pictorial materials

JIDI

300 dpi, 8-bit (24-bit for color, tinted or discolored originals), TIFF v.6, uncompressed

[Photographic prints]
Same as printed text.

[Art works]
600 dpi, 8-bit gray /24-bit color, TIFF, uncompr.

Scan from photo intermediates at 2400 dpi minimum

Memory of the World

200 dpi, 1-bit, TIFF v.6, ITU-T.6

100 dpi, 8-bit gray or 24-bit color, TIFF-JPEG lossless or lossy for non-critical images

100 dpi, 8-bit or 24-bit, TIFF-JPEG lossless. For maps larger than A3, use photointermediates.

100 dpi, 4-bit gray, 24-bit color, TIFF-JPEG lossless, or lossy for non-critical images

Colorado Digitization Project

600 dpi, 1-bit, TIFF, uncompressed

300 dpi, 8-bit gray, 24-bit color, TIFF, uncompressed

[Photographs]
3000 to 5000 pixels, 8-bit gray/24-bit color or greater, TIFF, uncompr.

[Graphic Materials]
3000 pixels or 300 dpi, 8-bit gray/24-bit color or greater, TIFF, uncompressed

[Maps]
300 dpi, 8-bit gray/24-bit color, TIFF, uncompressed

California Digital Library

600 dpi, 8-bit gray, TIFF-LZW

600 dpi, 24-bit color, TIFF-LZW

600 dpi if possible, but no less than 300 dpi, 24-bit color, TIFF-LZW

See pictorial materials