Package org.apache.pdfbox.examples.printing

Class OpaquePDFRenderer

java.lang.Object

org.apache.pdfbox.rendering.PDFRenderer

org.apache.pdfbox.examples.printing.OpaquePDFRenderer

public class OpaquePDFRenderer
extends PDFRenderer

PDF documents with transparency are sometimes printed slowly and in poor quality, see PDFBOX-4123 and PDFBOX-5605. If the transparency isn't really needed (e.g. for most labels), we can use a custom PDFRenderer / PageDrawer that uses a custom DrawObject class which doesn't call showTransparencyGroup() but only showForm() and sets ca and CA to 1.

This OpaquePDFRenderer class object can be passed to the "long" constructor of PDFPrintable(org.apache.pdfbox.pdmodel.PDDocument, org.apache.pdfbox.printing.Scaling, boolean, float, boolean, org.apache.pdfbox.rendering.PDFRenderer).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	OpaquePDFRenderer.OpaqueDrawObject
private static class	OpaquePDFRenderer.OpaquePageDrawer
private static class	OpaquePDFRenderer.OpaqueSetGraphicsStateParameters

Field Summary

Fields inherited from class org.apache.pdfbox.rendering.PDFRenderer

document

Constructor Summary

Constructors

Constructor	Description
OpaquePDFRenderer(PDDocument document)

Method Summary

Modifier and Type	Method	Description
protected PageDrawer	createPageDrawer(PageDrawerParameters parameters)	Returns a new PageDrawer instance, using the given parameters.
static void	main(String[] args)

Methods inherited from class org.apache.pdfbox.rendering.PDFRenderer

getAnnotationsFilter, getDefaultDestination, getImageDownscalingOptimizationThreshold, getRenderingHints, isGroupEnabled, isSubsamplingAllowed, renderImage, renderImage, renderImage, renderImage, renderImageWithDPI, renderImageWithDPI, renderPageToGraphics, renderPageToGraphics, renderPageToGraphics, renderPageToGraphics, setAnnotationsFilter, setDefaultDestination, setImageDownscalingOptimizationThreshold, setRenderingHints, setSubsamplingAllowed

Methods inherited from class java.lang.Object

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

Constructor Details

OpaquePDFRenderer

public OpaquePDFRenderer(PDDocument document)

Method Details

main

public static void main(String[] args)
                 throws IOException,
PrinterException,
URISyntaxException

Throws:

IOException

PrinterException

URISyntaxException

createPageDrawer

protected PageDrawer createPageDrawer(PageDrawerParameters parameters)
                               throws IOException

Description copied from class: PDFRenderer

Returns a new PageDrawer instance, using the given parameters. May be overridden.

Overrides:

createPageDrawer in class PDFRenderer

Parameters:

parameters - parameters to be used when creating the PageDrawer instance

Returns:

a new PageDrawer instance

Throws:

IOException - id the PageDrawer instance could not be created