PDF File

An abbreviation for Portable Document Format. The PDF format was originally developed to share documents between different operating systems in the late 1980s. Any text document, image or page layout can be saved as a PDF file that includes all of the font information needed to display it without losing quality.

More terms you might want to know

Vertex

The meeting point where two lines cross.

Typeface Design

The art and discipline of putting together set of typefaces into a harmonious and readable type system. A typeface designer spends much time considering many things such as clear visual message, readability at different sizes, legibility at small point sizes, ease of use for printing processes on its own or over the top of other fonts.

Resolution

The measure of a device or computer system's ability to capture fine detail. A higher number of pixels can provide more details and finer images on the screen.

Gestalt Theory

A theory in psychology that discusses the general idea that the whole is greater than the sum of its parts. It's based on a human need to search for stability and meaning, which leads to organic movements towards wholeness. Gestalt Theory assumes there are inherent flaws in how we perceive forms and patterns, and it holds that this innate tendency transforms into an active process of looking for order in reality.

Font Case

The way characters are capitalised within a word or phrase. Common font cases are uppercase, lowercase, capitalised (or title case) and sentence case.

PSD File

A digital file created in Adobe's illustration and photo manipulation software Photoshop. PSD files are used to edit images, create graphics, art, icons, images, among a plethora of other things.

Serial Position Effect

A phenomenon in psychology in which recalling items in a list imposes an order on the list, with the first and last items remembered best. That is, if given a list of words to remember like "dog apple tree", people will tend to recall "dog" as being at the beginning of the sentence and "tree" as being at the end of it.

Pixel-perfect

A phrase that is used in reference to someone's work. The term pixel-perfect can be used to describe something as being flawless without any errors.

Italics

A type of typographical contrast used to convey emphasis. Italics were initially developed for the printing press and are now widely used in print, web design, public signs and labelling systems.

Agile Design

A process that involves assigning people to work on different parts of the design and making sure that they focus on one area at a time. This method is an excellent way to release products more quickly and with higher quality.

The most common types of agile methods are Scrum, Kanban, XP and Agile Modeling. It can often be difficult for companies to make the switch because it requires significant changes in how product development occurs.

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