This part of ISO 19005 specifies how to use the Portable Document Format (PDF) 1.4 for long-term preservation of electronic documents. It is applicable to documents containing combinations of character, raster and vector data. This part of ISO 19005 does not apply to: — specific processes for converting paper or electronic documents to the PDF/A format; — specific technical design, user interface, implementation, or operational details of rendering; — specific physical methods of storing these documents such as media and storage conditions; — required computer hardware and/or operating systems.