Categories of PDFs

There are five categories of predefined fields:

• Current status PDFs, which provide information about the current runtime environment, such as the current user ID.
• Process control PDFs, which limit or affect an operation within the application.
• Terminal management PDFs, which can be used to control and provide information about the current cursor position.
• Report management PDFs, which can be used to control and provide information about the disposition and production of reports, such as the print destination.
• General purpose PDFs are used as index work variables or work fields in ILF statements.