This part of ISO 19005 specifies how to use the Portable Document Format (PDF) 1.4 for long-termpreservation 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.