Page zooming

In computing, page zooming is the ability to zoom in and out a document or image at page level. It is usually found in applications related to document layout and publishing, e.g. word processing and spreadsheet programs, but it can also be found in web browsers as it improves accessibility for people with visual impairment and people using mobile devices, such as PDAs and mobiles which have a relatively small screen.

Different modes

There are two notably different modes of page zooming:

When zooming in, a horizontal scroll bar will appear when the screen is not wide enough to hold the page content.

Early web browsers had only the ability to resize the text on a page, but in the meantime all major browsers have the ability to resize the full content. The quality differs between the web browsers since they use different algorithms.