I

Imposition: Imposition is the positioning of the pages on the press sheet so that when the sheet is printed, the pages fall in the desired order, in the correct orientation. (i.e. right-side up) and with the correct margins.

Inkjetting: A type of nonimpact printing process, used most frequently in computer output devices, that utilizes tiny droplets of highly fluid ink that are given an electric charge. During printing, these droplets are sprayed in a continuous fashion towards the substrate.

Insert: In bindery and finishing, an insert is one printed signature that has another signature wrapped around it. Insert also refers to any preprinted page or set of pages that are placed into separately printed publication. Examples of inserts are advertising supplements, maps or foldouts.

J

JPEG: A standard format developed by the Joint Photographic Experts Group, allowing the transfer of files between a wide variety of platforms, using superior compression techniques. JPEG supports 8-bit grayscale and color depths up to 32-bit CMYK. A type of image file that is best used for displaying photographic images on websites.

L

Lamination: A layer of clear plastic applied to a sheet of paper (or other material) for preservation, protection or other purposes. Also refers to the process of applying such a clear plastic layer.

Lap Glue: Lap glue is a generic term to describe hotmelt or cold glue which is applied in the perfect binding process inside the front and back cover, near the spine, to produce a hinge effect on the covers.

Layflat Binding: Perfect binding that has a spine that "floats" - not glued to the pages.

Loop stitching: Loop stitching allows a booklet to be saddle stitched and inserted into a loose-leaf binder without drilling.

Loose-leaf Binding: A means of mechanical binding in which pages are bound together by means of inserting the metal rings or poles of a three-hole binder into drilled or punched holes along the binding edge of the pages.