High Quality Content by WIKIPEDIA articles! The Page Up and Page Down keys (sometimes abbreviated as PgUp and PgDn) are two keys commonly found on computer keyboards.The two keys are primarily used to scroll up or down in documents, but the scrolling distance varies between different applications. In cases when the document is shorter than one screenful, the Page Up and Page Down keys don't respond.The arrow keys and the scroll wheel can also be used to scroll a document, although by smaller incremental distances.

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