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PDF Spec 02 Conformance

Marc Jones edited this page Dec 30, 2025 · 1 revision

PDF Spec Chapter 2: Conformance

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2 Conformance

2.1 General

Conforming PDF files shall adhere to all requirements of the ISO 32000-1 specification and a conforming file is not obligated to use any feature other than those explicitly required by ISO 32000-1.

NOTE 1 The proper mechanism by which a file can presumptively identify itself as being a PDF file of a given version level is described in 7.5.2, "File Header".

2.2 Conforming readers

A conforming reader shall comply with all requirements regarding reader functional behaviour specified in ISO 32000-1. The requirements of ISO 32000-1 with respect to reader behaviour are stated in terms of general functional requirements applicable to all conforming readers. ISO 32000-1 does not prescribe any specific technical design, user interface or implementation details of conforming readers. The rendering of conforming files shall be performed as defined by ISO 32000-1.

2.3 Conforming writers

A conforming writer shall comply with all requirements regarding the creation of PDF files as specified in ISO 32000-1. The requirements of ISO 32000-1 with respect to writer behaviour are stated in terms of general functional requirements applicable to all conforming writers and focus on the creation of conforming files. ISO 32000-1 does not prescribe any specific technical design, user interface or implementation details of conforming writers.

2.4 Conforming products

A conforming product shall comply with all requirements regarding the creation of PDF files as specified in ISO 32000-1 as well as comply with all requirements regarding reader functional behavior specified in ISO 32000-1.


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