com.groupdocs.watermark.internal

Class PdfUtils

java.lang.Object

com.groupdocs.watermark.internal.PdfUtils

public class PdfUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
PdfUtils()

Method Summary

Modifier and Type	Method and Description
static PdfXImageAppearance	extractImage(com.aspose.pdf.XForm form) Extracts image information from a form.
static com.aspose.pdf.Matrix	getConcatenateMatrix(com.aspose.pdf.XForm form, com.aspose.pdf.Matrix start) Gets form concatenate matrix considering all nested forms.
static com.aspose.pdf.XForm	getForm(com.aspose.pdf.XFormCollection forms, String formName)
static com.aspose.pdf.XImage	getImage(com.aspose.pdf.XImageCollection images, String imageName)
static byte[]	getImageData(com.aspose.pdf.XImage image) Gets image data byte array from Aspose.Pdf.XImage.
static com.aspose.pdf.XForm	getLastForm(com.aspose.pdf.XForm form) Gets the last form in chain of nested forms.
static double	getRotateAngle(com.aspose.pdf.Matrix matrix) Gets rotate angle from concatenate matrix.
static SizeD	getSize(com.aspose.pdf.Rectangle originalRectangle, com.aspose.pdf.Matrix concatenateMatrix) Gets the size of original rectangle after all scale transformations.
static boolean	isFormValid(com.aspose.pdf.XForm form)

Methods inherited from class java.lang.Object

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

Constructor Detail

PdfUtils

public PdfUtils()

Method Detail

extractImage

public static PdfXImageAppearance extractImage(com.aspose.pdf.XForm form)

Extracts image information from a form.

Parameters:

form - Form to extract image from.

Returns:

Image or null if not found.

getConcatenateMatrix

public static com.aspose.pdf.Matrix getConcatenateMatrix(com.aspose.pdf.XForm form,
                                                         com.aspose.pdf.Matrix start)

Gets form concatenate matrix considering all nested forms. This matrix is used to calculate XObject size and coordinates.

Parameters:

form - Form to get concatenate matrix for.

start - Starting concatenate matrix.

Returns:

Concatenate matrix.

getForm

public static com.aspose.pdf.XForm getForm(com.aspose.pdf.XFormCollection forms,
                                           String formName)

getImage

public static com.aspose.pdf.XImage getImage(com.aspose.pdf.XImageCollection images,
                                             String imageName)

getImageData

public static byte[] getImageData(com.aspose.pdf.XImage image)

Gets image data byte array from Aspose.Pdf.XImage.

Parameters:

image - Image to get data from.

Returns:

Byte array representing image data.

getLastForm

public static com.aspose.pdf.XForm getLastForm(com.aspose.pdf.XForm form)

Gets the last form in chain of nested forms.

Parameters:

form - First form in the chain.

Returns:

The last form.

getRotateAngle

public static double getRotateAngle(com.aspose.pdf.Matrix matrix)

Gets rotate angle from concatenate matrix.

Parameters:

matrix - Concatenate matrix to get angle from.

Returns:

Rotate angle in degrees.

getSize

public static SizeD getSize(com.aspose.pdf.Rectangle originalRectangle,
                            com.aspose.pdf.Matrix concatenateMatrix)

Gets the size of original rectangle after all scale transformations.

Parameters:

originalRectangle - Original rectangle to calculate size for.

concatenateMatrix - Concatenate matrix.

Returns:

The size of rectangle.

isFormValid

public static boolean isFormValid(com.aspose.pdf.XForm form)