Portable Network Graphics

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Main Page > Documentation > Format policies > Portable Network Graphics

Also known as

File extension(s)


Format registry information

Significant characteristics

See Significant characteristics of raster images

Preservation action plan

See Raster images

Preservation issues

Conversion test results

PNGs will not be normalized so no normalization testing has been undertaken.

More information

Library of Congress Sustainability of Digital Formats: PNG, Portable Network Graphics