This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
Abstract Preview
ISO/IEC 15948:2004 specifies a datastream and an associated file format, Portable Network Graphics (PNG, pronounced "ping"), for a lossless, portable, compressed individual computer graphics image transmitted across the Internet. Indexed-colour, greyscale, and truecolour images are supported, with optional transparency. Sample depths range from 1 to 16 bits. PNG is fully streamable with a progressive display option. It is robust, providing both full file integrity checking and simple detection of common transmission errors. PNG can store gamma and chromaticity data as well as a full ICC colour profile for accurate colour matching on heterogenous platforms. ISO/IEC 15948:2004 defines the Internet Media type "image/png". The datastream and associated file format have value outside of the main design goal.
General information
-
Status : PublishedPublication date : 2004-03
-
Edition : 1Number of pages : 80
-
Technical Committee:Computer graphics, image processing and environmental data representation
-
- ICS :
-
Computer graphics
Buy this standard
| Format | Language | |
|---|---|---|
| HTML | ||
| HTML on CD |
- CHF178
Life cycle
-
Now
Got a question?
Check out our FAQs
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.