Adobe Registered Trade Mark of Adobe Systems Inc.
AFP 'Advanced Function Printing' data-stream format from IBM.
dynamic refers to data supplied by a field, i.e. whose value may change. Pages are often composed of a 'static' overlay plus some 'dynamic' data which may be different for every page.
escape sequence A command embedded in text that starts with an Esc character. It is normally terminated by an upper-case character, for example, Esc E resets a PCL printer.
MODI The 'Microsoft Office Document Imaging' optical character recognition routine.
overlay This contains the "fixed" elements of a page. It places the same 'static' content on every sheet – like pre-printed stationery. Dynamic data (i.e. variable values supplied by fields) may be added to complete the page.
PDF 'Portable Document Format' from Adobe.
PS 'PostScript' printer language from Adobe.
RedTitan Trademark of RedTitan Technology Ltd: see www.redtitan.com
RIF 'RedTitan Image Format'.
sub-set If a document contains 'sub-set' fonts, it will include only the characters actually used to create the document in its resources. Other characters that are normally included (i.e. in a full character set) will not be available to the document.
Windows Trademark of the Microsoft operating system.