Portable Network Graphics

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File extension(s)

• .png

Format Registry Information

• PRONOM

Preservation Action Plan

• Do not normalize.

Preservation Issues

• Xena retains .png files as is and wraps them in Xena XML.
• Suggested preferred preservation format for bitmap images, Library of Congress
• Florida digital Archive has "high confidence level" in ability to preserve .png files: FDA Recommended Data File Formats.

More information

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