PageContentRotationHelper

java.lang.Object
- com.itextpdf.kernel.pdf.PageContentRotationHelper

```
public final class PageContentRotationHelper
extends java.lang.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.

Constructor Summary

Constructors
Modifier Constructor Description

private PageContentRotationHelper()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	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

- Constructor Detail
  - PageContentRotationHelper
```
private PageContentRotationHelper()
```
- 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