User interface

You can use the following methods to apply actions and position elements in the user interface.

setScale(int scale)
Specifies the scale mode to be used to display a page.
getScale()
Returns the scale value as an integer where 0=bestfit, 1=Fit-to-Width and 2=fit-to-Height.
setView(int view)
Specifies the view mode that is to be used to display the pages of a document. This method is effective only while a document is open.
getView()
Returns an integer value that represents the view mode.
rotate180()
Rotates the current page by 180 degrees.
rotateClockwise
Rotates the current page clockwise by 90 degrees.
rotateCounterclockwise()
Rotates the current page counterclockwise by 90 degrees.
rotateAll180()
Rotates all the pages in a multi-page document by 180 degrees.
rotateAllClockwise()
Rotates all the pages in a multi-page document clockwise by 90 degrees.
rotateAllCounterclockwise()
Rotates all the pages in a multi-page document counter-clockwise by 90 degrees.
invert()
Inverts the display colors, for example black changes to white and white changes to black.
getZoom()
Returns the current zoom level as a double value.
setZoom()
Sets a zoom level to the specified value.
zoomIn()
Applies a 25% increase to the current zoom level.
zoomOut()
Applies a 25% decrease to the current zoom level.
setXYScroll(int x, int y)
Sets the scroll bars to the specified positions.
getMagFactor()
Returns an integer that represents the current magnification factor for the magnifier window.
setMagFactor(int factor)
Sets the magnification factor for the magnifier window where the factor parameter is an integer value 2 - 25.
setFocus()
Puts focus on the viewer or removes focus from the viewer.

Parent topic: JavaScript API reference