PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for the digital preservation of electronic documents. The extension in the file name is pdf. PDF/A differs from "normal" PDF in that features ill-suited for long-term archiving are omitted. PDF/A embeds all fonts used in the document within the PDF file, so that the user of your file will not have to have the same fonts that you used to create the file installed on their computer in order to read it. Recommended versions are PDF/A-1a, -1b, -2a or -2b.PDF/A conversion -how to convert files to the PDF/A -format using different tools Microsoft Word (Office) and PDF-Xchange pro/Editor are installed on all Windows workstations managed by Aalto IT.