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Name JPX
Description JPEG 2000 Part 2
MIME Type(s) image/jpx
PRONOM ID(s) fmt/151
UDFR ID(s) u1f104
Archive Team Wiki JPX
Library of Congress Digital Formats JPX
Wikipedia page(s)
File extension(s) jpf,jpx
Format specification 15444-2annexm.pdf (Source:


JPX is a raster still image format that contains JPEG 2000 compressed image data. Conceptually, it can be seen as a wrapper for JPEG 2000 codestreams and their associated metadata. JPX is an extension to the JP2 format.

Format issues

Files identified as JP2 are really JPX (JPEG 2000 Part 2)

JPEG 2000 support discontinued in Photoshop Elements

Erroneous tile-part information in images created by Adobe Photoshop

User Experiences

e.g. links to AQuA/SCAPE/Hackathon issues related to this format

News Feeds

Links to places to find out when this format changes.


Cross-references to tools that support this format.

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