Difference between revisions of "Portable Network Graphics"

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[[Main Page]] > [[Documentation]] > [[Format-specific preservation issues]] > Portable Network Graphics
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[[Main Page]] > [[Documentation]] > [[Format policies]] > Portable Network Graphics
  
  
 
===Also known as===
 
===Also known as===
 
 
  
 
===File extension(s)===
 
===File extension(s)===
* .png
+
.png
  
===Format Registry Information===
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===Format registry information===
 
*[http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=666 PRONOM]
 
*[http://www.nationalarchives.gov.uk/PRONOM/Format/proFormatSearch.aspx?status=detailReport&id=666 PRONOM]
  
===Preservation Action Plan===
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===Significant characteristics===
*Do not normalize.
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See [[Significant characteristics of raster images]]
 +
 
 +
===Preservation action plan===
 +
See [[Raster images]]
  
===Preservation Issues===
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===Preservation issues===
*[http://xena.sourceforge.net/ Xena] retains .png files as is and wraps them in Xena XML.
 
 
*Suggested preferred preservation format for bitmap images, [http://www.digitalpreservation.gov/formats/fdd/fdd000153.shtml Library of Congress]
 
*Suggested preferred preservation format for bitmap images, [http://www.digitalpreservation.gov/formats/fdd/fdd000153.shtml Library of Congress]
 
*Florida digital Archive has "high confidence level" in ability to preserve .png files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
 
*Florida digital Archive has "high confidence level" in ability to preserve .png files: [http://www.fcla.edu/digitalArchive/formatInfo.htm FDA Recommended Data File Formats].
 
*Library and Archives Canada considers PNG to be a recommended format for still images: [http://www.collectionscanada.gc.ca/government/products-services/007002-3017-e.html Guidelines for Computer File Types, Interchange Formats and Information Standards]
 
*Library and Archives Canada considers PNG to be a recommended format for still images: [http://www.collectionscanada.gc.ca/government/products-services/007002-3017-e.html Guidelines for Computer File Types, Interchange Formats and Information Standards]
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 +
===Conversion test results===
 +
PNGs will not be normalized so no normalization testing has been undertaken.
  
 
===More information===
 
===More information===
*[http://www.digitalpreservation.gov/formats/fdd/fdd000153.shtml Library of Congress Sustainability of Digital Formats: PNG, Portable Network Graphics]
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[http://www.digitalpreservation.gov/formats/fdd/fdd000153.shtml Library of Congress Sustainability of Digital Formats: PNG, Portable Network Graphics]
  
  
 
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Latest revision as of 15:53, 19 February 2013

Main Page > Documentation > Format policies > Portable Network Graphics


Also known as[edit]

File extension(s)[edit]

.png

Format registry information[edit]

Significant characteristics[edit]

See Significant characteristics of raster images

Preservation action plan[edit]

See Raster images

Preservation issues[edit]

Conversion test results[edit]

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

More information[edit]

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