Fiery Impose arranges the pages of your application-specific file in the correct order and orientation for printing and a variety of binding styles to produce a bound book.

Commercial offset printers and web presses use wide rolls of paper and large printing plates capable of imaging numerous pages on a single sheet. Printers might image up to 32 full-size pages on a single press sheet, a process inherently faster than printing a single page at a time. Fiery Impose allows you to image multiple pages on a single sheet, but the output devices it supports are digital copiers, rather than traditional printing presses. The paper on which a job is imaged is referred to as the sheet.

The printed sheet is folded into something resembling a booklet with connected pages. The folded sheet, called a signature, is then trimmed to the finished size.

For pages to appear in normal reading order and position in the final booklet, their ordering and positioning on the sheet must differ from the normal book-reading order. Some pages must be printed upside down on the sheet in order for them to appear right-side-up in the final booklet, and pages must also be printed out of numerical sequence on the sheet in order for them to appear in the correct numerical sequence in the final booklet.