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Saddle-sewn - A form of binding that stitches thread through the gutter fold of a publication.

Saddle-stitched - A form of binding that uses staple-shaped wires through the gutter fold; also called saddle-wired.

Safelight - A lamp for use in the darkroom that gives light of a color that will not affect the photographic material within a reasonable time. Different photographic materials require different safelight filters.

Sans Serif Type - Any type style that does not have cross strokes on the ends of the letters.

Scale - Calculate the amount a photo is to be reduced or enlarged.

Scanner - Electronic device used to digitize an image.

Score - To compress paper along a straight line so it folds more easily and accurately.

Screen - Plastic sheets that have cross-hatched lines. These screens are placed between the camera and the original photo or continuous tones to break the image into dots to create a halftone image.

Screen Angles - Angles at which the halftone screens are placed with relation to one another to avoid undesirable moire pattern. The most common angles are black 45? magenta 75? yellow 90?and cyan 105?

Screen Frequency - The number of rows (lines) and columns of dots per inch or centimeter of a halftone screen.

Screen Printing - Method of printing by using a squeegee to force ink through an assembly of mesh fabric and a stencil.

Screen Ruling - Sometimes confused with resolution, screen ruling is the number of printing dots per millimeter or per inch on the exposed film. The screen ruling is a critical factor in determining the resolution need. The finer the screen ruling, the higher the resolution needs to be, due to the amount of information required to generate the printing dots.

Screen Tint - A halftone screen pattern of all the same size dots that creates an even tone.

Secondary Colors - Colors created by combining two primary colarants of a color system. Example: red would be the secondary color produced with magenta and yellow. Also referred to as overprint colors.

Selective Binding - Placing signatures or inserts in magazines and catalogs according to demographic or geographic guidelines.

Self Cover - A cover made from the same paper as the inside text pages.

Serif Type - Any type style that has cross strokes on the ends of the letters.

Serigraphics Printing - Printing method whose image carriers are woven fabric, plastic or metal that allows ink to pass through some portions and blocks ink from passing through other portions. Types include screen and mimeograph.

Service Bureau - A business that provides manipulation and output of digital files, usually to a PostScript imagesetter.

Set-off - Ink from a printed sheet rubs off or marks the next sheet as it is being delivered. Also called offset.

Shadow - The darkest areas of an image or photograph; represented as the largest dots in a halftone.

Sharpen - Reducing the size in halftones or separations.

Sheetfed Press - A printing press that uses sheets of paper, rather than a continuous paper roll or web.

Sheetwise - To print one side of a sheet of paper with one form or plate, then turn the sheet over and print the other side with another form using the same gripper and side guide. This method is used for printing signatures.

Shingling - A technique used to compensate for creep. The gutter margin on a page is gradually narrowed from the outside pages to the middle pages of the signature.

Show-through - The undesirable condition in which the printing on the reverse side of a sheet can be seen through the sheet under normal lighting conditions.

Side Stitch - To bind by stapling through all sheets along one edge.

Signature - A group of pages brought together into proper sequential order and alignment after it has been folded.

Signature Proof - Kodakï¿½s proofing system, negative/positive, on most stocks.

Silhouette Halftone - A halftone with all of the background removed. Silverprint - A proof that is made of the negative film to ensure that all elements are accurate and in correct position before the plate is made.

Sizing - Treatment of paper which gives it resistance to the penetration of liquids (particularly water) or vapors.

Skid (also pallet) - Wooden platform that supports piles of paper during shipping and storage. Skids usually accommodate from 2500 to 4000 pounds of paper.

Slit - To cut printed sheets or webs into two or more sections by means of cutting wheels on a press or folder.

Slur - A smearing of ink that occurs in printing when there isnï¿½t enough pressure on the blanket.

Soft Dot - Halftone dot with a weak fringe density or halo surrounding a solid core.

Soft Proof - A proof that is viewed on a color-calibrated video monitor as opposed to a hard proof on paper.

Solid - Any area of the sheet receiving 100 percent ink coverage.

Specs - Complete and precise written description (or specifications) of features of a printing job such as type size and leading, paper grade and quantity, printing quality or binding method.

Spine - The back of a bound book connecting the two covers. Also called backbone.

Spiral Bind - To bind using a spiral of continuous wire or plastic looped through holes. Also called coil bind.

Split Run - Different images, such as advertisements, printed or bound in different editions of a publication. Also, two or more binding methods used on the same print run.

Spooler - A device by which a computer can store data and feed it gradually to an external device, such as a printer, which is operating more slowly than the computer.

Spot Color - Individual color or colors that are utilized to highlight illustrations or type. Spot color is frequently printed with non-process color inks, although process inks can be used.

Spot Varnish - Varnish applied only to certain portions of a sheet to highlight those areas.

Spread - Two facing pages. They can be a readerï¿½s spread or a printerï¿½s spread. Square Halftone - A halftone that has four right-angle corners.

Standard Viewing Condition - An area surrounded by a neutral gray and illuminated by a light source of 5000K both for viewing transparencies and reflection prints. Large format transparencies should be surrounded by approximately 2-4 inches or 5-10 centimeters of white surround and should not be viewed with a dark surround.

Stat - Short for photostat, a photographic print of line copy or halftones.

Static Neutralizer - A device on a printing press designed to remove static from the paper and avoid ink set-off and trouble with feeding the paper.

Step-and-repeat - The procedure of exposing an image repeatedly in different places on the printing plate.

Stochastic Screening - A digital screening process that converts images into very small dots (14-40 microns) of equal size and variable spacing.

Stripping - The process of manually creating composite films and fully imposed flats for platemaking. Most of this work is now done electronically, bypassing the traditional artisan.

Substrate - Any surface on which printing is done.

Supercalender - A finishing device consisting of alternate metal and resilient rollers used to produce a smooth, thin sheet of paper.

SWOP - Abbreviation for the revised Specifications for Web-Offset Publications; a set of specifications for color separation films and color proofing to insure the consistency of the printed color.