org.sejda.sambox.pdmodel.graphics.image

Class JPEGFactory

java.lang.Object

org.sejda.sambox.pdmodel.graphics.image.JPEGFactory

public final class JPEGFactory
extends Object

Factory for creating a PDImageXObject containing a JPEG compressed image.

Author:

John Hewson

Method Summary

Modifier and Type	Method and Description
static PDImageXObject	createFromFile(File file) Creates a new JPEG Image XObject from an input stream containing JPEG data.
static PDImageXObject	createFromImage(BufferedImage image) Creates a new JPEG Image XObject from a Buffered Image.
static PDImageXObject	createFromImage(BufferedImage image, float quality) Creates a new JPEG Image XObject from a Buffered Image and a given quality.
static PDImageXObject	createFromImage(BufferedImage image, float quality, int dpi) Creates a new JPEG Image XObject from a Buffered Image, a given quality and DPI.
static PDColorSpace	getColorSpaceFromAWT(BufferedImage awtImage)
static BufferedImage	readJpegFile(File file)

Methods inherited from class java.lang.Object

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

Method Detail

createFromFile

public static PDImageXObject createFromFile(File file)
                                     throws IOException

Creates a new JPEG Image XObject from an input stream containing JPEG data. The input stream data will be preserved and embedded in the PDF file without modification.

Parameters:

file - a JPEG file

Returns:

a new Image XObject

Throws:

IOException - if the input stream cannot be read

readJpegFile

public static BufferedImage readJpegFile(File file)
                                  throws IOException

Throws:

IOException

createFromImage

public static PDImageXObject createFromImage(BufferedImage image)
                                      throws IOException

Creates a new JPEG Image XObject from a Buffered Image.

Parameters:

image - the buffered image to embed

Returns:

a new Image XObject

Throws:

IOException - if the JPEG data cannot be written

createFromImage

public static PDImageXObject createFromImage(BufferedImage image,
                                             float quality)
                                      throws IOException

Creates a new JPEG Image XObject from a Buffered Image and a given quality. The image will be created at 72 DPI.

Parameters:

image - the buffered image to embed

quality - the desired JPEG compression quality

Returns:

a new Image XObject

Throws:

IOException - if the JPEG data cannot be written

createFromImage

public static PDImageXObject createFromImage(BufferedImage image,
                                             float quality,
                                             int dpi)
                                      throws IOException

Creates a new JPEG Image XObject from a Buffered Image, a given quality and DPI.

Parameters:

image - the buffered image to embed

quality - the desired JPEG compression quality

dpi - the desired DPI (resolution) of the JPEG

Returns:

a new Image XObject

Throws:

IOException - if the JPEG data cannot be written

getColorSpaceFromAWT

public static PDColorSpace getColorSpaceFromAWT(BufferedImage awtImage)