Page zooming on:
[Wikipedia]
[Google]
[Amazon]
In
The level of page zoom, expressed as a percentage, can often be accessed using a slider. Other methods include a drop-down menu from with a zoom level can be selected, pinch-to-zoom on touchscreen devices, mouse wheel scrolling (often in combination with holding down a key on the keyboard), or
computing
Computing is any goal-oriented activity requiring, benefiting from, or creating computer, computing machinery. It includes the study and experimentation of algorithmic processes, and the development of both computer hardware, hardware and softw ...
, page zooming is the ability to zoom in and out a document or image at page
Page most commonly refers to:
* Page (paper), one side of a leaf of paper, as in a book
Page, PAGE, pages, or paging may also refer to:
Roles
* Page (assistance occupation), a professional occupation
* Page (servant), traditionally a young m ...
level. It is usually found in applications related to document layout
In general terms, a layout is a structured arrangement of items within certain limits, or a plan for such arrangement.
Specifically, layout may refer to:
* Page layout, the arrangement of visual elements on a page
** Comprehensive layout (comp), ...
and publishing
Publishing is the activities of making information, literature, music, software, and other content, physical or digital, available to the public for sale or free of charge. Traditionally, the term publishing refers to the creation and distribu ...
, e.g. word processing A word processor (WP) is a device or computer program that provides for input, editing, formatting, and output of text, often with some additional features.
Word processor (electronic device), Early word processors were stand-alone devices dedicate ...
and spreadsheet
A spreadsheet is a computer application for computation, organization, analysis and storage of data in tabular form. Spreadsheets were developed as computerized analogs of paper accounting worksheets. The program operates on data entered in c ...
programs, and is also found in web browser
A web browser, often shortened to browser, is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's scr ...
s. It can be used to improve accessibility for people with visual impairment
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficul ...
and people using mobile device
A mobile device or handheld device is a computer small enough to hold and operate in hand. Mobile devices are typically battery-powered and possess a flat-panel display and one or more built-in input devices, such as a touchscreen or keypad. ...
s which have a relatively small screen.
Different modes
There are several notably different modes of page zooming: * ''Text resizing'' resizes the text by increasing or decreasing the font size, with wrapping to avoid horizontal scrolling, leaving the size of the images the same. This was available in old web browsers and browsers with special extensions. * Another mode resizes all objects (text, images, boxes, embedded videos, etc.) and performs a layout shift / reflow such that the page still fits horizontally on the screen. In web browsers, this is available through and . * ''Visual viewport zoom'' resizes all objects without performing a reflow, i.e., the page does not fit horizontally on the screen and the user has to scroll left or right to see other objects. In web browsers, this is available through pinch gestures on a touchscreen or touchpad. Due to having both a keyboard and a multi-touch touchpad, laptop computers support the latter two modes in many web browsers.User interface
The level of page zoom, expressed as a percentage, can often be accessed using a slider. Other methods include a drop-down menu from with a zoom level can be selected, pinch-to-zoom on touchscreen devices, mouse wheel scrolling (often in combination with holding down a key on the keyboard), or keyboard shortcuts
In computing, a keyboard shortcut (also hotkey/hot key or key binding) is a software-based assignment of an action to one or more keys on a computer keyboard. Most Operating system, operating systems and Application software, applications come ...
(such as + /).
If the content becomes larger than the screen when zoomed in, a horizontal scroll bar may appear to allow the user to navigate.
Zooming of non-text media
Image viewing applications allow the user to zoom in on an area of an image. Most home entertainment media players of recent generations such asDVD
The DVD (common abbreviation for digital video disc or digital versatile disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any ki ...
and Blu-ray
Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-defin ...
also include the ability to zoom in and out via buttons on a remote control, and to change the area of focus of the zoom.
See also
*Resolution independence
Resolution independence is where elements on a computer screen are rendered at sizes independent from the pixel grid, resulting in a graphical user interface that is displayed at a consistent physical size, regardless of the resolution of the sc ...
, in which elements on a computer screen are rendered at sizes independent from the pixel grid
* Zooming user interface
In computing, a zooming user interface or zoomable user interface (ZUI, pronounced zoo-ee) is a type of graphical user interface (GUI) where users can change the scale of the viewed area in order to see more detail or less, and browse through ...
References
{{DEFAULTSORT:Page Zooming User interface techniques