This part of ISO24517 specifies the use of the Portable Document Format (PDF) Version 1.6 for the creation of documents used in engineering workflows. This part of ISO24517 does not define the following: method of electronic distribution; method of creation or conversion from paper or electronic documents to the PDF/E format; specific technical design, user interface, or implementation; required computer hardware and/operating systems; or methods for validating the conformance of PDF/E files or readers.