Efficient Embedded Images in Portable Document Format (PDF)

The use of facsimile machines is gradually declined, because the email slowly but surely takes its function; however, the use of the facsimile format is still supported by the well-known format Portable Document Format (PDF). In spite of that, PDF commonly prefers to use JPEG over using the facsimile format. This can be suitable for many images; however, when the image is a document, preferring JPEG over the facsimile format will not yield high-quality outcomes. In this paper we explain why the facsimile format can do better when an embedded image of document is enclosed in a PDF file. Keywords— PDF, Facsimile, JPEG