Okular, Debian, and copy restrictions
Posted Jun 2, 2009 4:01 UTC (Tue) by Trelane
Parent article: Okular, Debian, and copy restrictions
The above arguments are a cop-out. It is worth noting, however, that there is a very valid reason for implementing the DRM: patent licenses.
Accordingly, the following patents are licensed on a royalty-free, nonexclusive basis for the term of each patent and for the sole purpose of developing software that produces, consumes, and interprets PDF files that are compliant with the Specification:
A conforming reader (http://www.adobe.com/devnet/pdf/pdf_reference.html)
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.
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