---
schema-version: v1.2.9
id: W3CPR-PNG-20030520
title:
- content: Portable Network Graphics (PNG) Specification (Second Edition)
  format: text/plain
link:
- content: https://www.w3.org/TR/2003/PR-PNG-20030520/
  type: src
type: standard
docid:
- id: W3C PR-PNG-20030520
  type: W3C
  primary: true
docnumber: PR-PNG-20030520
date:
- type: published
  value: '2003-05-20'
contributor:
- organization:
    name:
    - content: World Wide Web Consortium
    abbreviation:
      content: W3C
    url: https://www.w3.org/
  role:
  - type: publisher
- person:
    name:
      given:
        forename:
        - content: Adam
          language:
          - en
          script:
          - Latn
      surname:
        content: Costello
        language:
        - en
        script:
        - Latn
  role:
  - type: editor
- person:
    name:
      given:
        forename:
        - content: Tom
          language:
          - en
          script:
          - Latn
      surname:
        content: Lane
        language:
        - en
        script:
        - Latn
  role:
  - type: editor
revdate: '2003-05-20'
language:
- en
script:
- Latn
docstatus:
  stage:
    value: Proposed Recommendation
relation:
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  bibitem:
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    title:
    - content: Portable Network Graphics (PNG) Specification (Second Edition)
      format: text/plain
    link:
    - content: https://www.w3.org/TR/PNG/
      type: src
    docid:
    - id: W3C PNG
      type: W3C
      primary: true
- type: updatedBy
  bibitem:
    id: W3CREC-PNG-20031110
    title:
    - content: Portable Network Graphics (PNG) Specification (Second Edition)
      format: text/plain
    link:
    - content: https://www.w3.org/TR/2003/REC-PNG-20031110/
      type: src
    docid:
    - id: W3C REC-PNG-20031110
      type: W3C
      primary: true
  description:
    content: errata
    format: text/plain
series:
- title:
    content: W3C Proposed Recommendation
    format: text/plain
  number: PR-PNG-20030520
ext:
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  doctype:
    type: technicalReport
  editorialgroup:
  - name: UNKNOWN WORKING GROUP