com.itextpdf.kernel.pdf

Class PageContentRotationHelper

java.lang.Object

com.itextpdf.kernel.pdf.PageContentRotationHelper

public final class PageContentRotationHelper
extends Object

Helper class to specify or check whether inverse matrix is already applied to the page content stream in case page rotation is applied and PdfPage.setIgnorePageRotationForContent(boolean) is set to true.

Page rotation inverse matrix rotates content into the opposite direction from page rotation direction in order to give the impression of the not rotated text. It should be applied only once for the page.

Method Summary

Modifier and Type	Method and Description
static boolean	isPageRotationInverseMatrixWritten(PdfPage page) Checks if page rotation inverse matrix (which rotates content into the opposite direction from the page rotation direction in order to give the impression of the not rotated text) is already applied to the page content stream.
static void	setPageRotationInverseMatrixWritten(PdfPage page) Specify that inverse matrix (which rotates content into the opposite direction from the page rotation direction in order to give the impression of the not rotated text) is applied to the page content stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isPageRotationInverseMatrixWritten

public static boolean isPageRotationInverseMatrixWritten(PdfPage page)

Checks if page rotation inverse matrix (which rotates content into the opposite direction from the page rotation direction in order to give the impression of the not rotated text) is already applied to the page content stream. See PdfPage.setIgnorePageRotationForContent(boolean).

Parameters:

page - PdfPage to check applied content rotation for

Returns:

true if inverse matrix is already applied, false otherwise

setPageRotationInverseMatrixWritten

public static void setPageRotationInverseMatrixWritten(PdfPage page)

Specify that inverse matrix (which rotates content into the opposite direction from the page rotation direction in order to give the impression of the not rotated text) is applied to the page content stream. See PdfPage.setIgnorePageRotationForContent(boolean).

Parameters:

page - PdfPage for which to specify that content rotation is applied