org.sejda.impl.sambox.component.optimization

Class ResourceDictionaryCleaner

java.lang.Object

org.sejda.impl.sambox.component.optimization.ResourceDictionaryCleaner

All Implemented Interfaces:

Consumer<org.sejda.sambox.pdmodel.PDDocument>

public class ResourceDictionaryCleaner
extends Object
implements Consumer<org.sejda.sambox.pdmodel.PDDocument>

Component that walks through the page tree, finds resource dictionaries and removes any image xobject (type xobject, subtype image) that is not wrapped by a ReadOnlyFilteredCOSStream and any font that is not wrapped by a InUseFontDictionary. This is the step performed after pages content stream have been already parsed, all used image wrapped by a ReadOnlyFilteredCOSStream and all used fonts wrapped by a InUseFontDictionary and placed back to the resource dictionary. This is done in two steps because dictionaries can be shared/inherited by pages so we can't take a single page, identify used images and remove the remaining because that same resource dictionary can be used by other pages.

Author:

Andrea Vacondio

Constructor Summary

Constructors

Constructor and Description
ResourceDictionaryCleaner()

Method Summary

Modifier and Type	Method and Description
void	accept(org.sejda.sambox.pdmodel.PDDocument p)
void	clean(org.sejda.sambox.pdmodel.PDPage page)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Consumer

andThen

Constructor Detail

ResourceDictionaryCleaner

public ResourceDictionaryCleaner()

Method Detail

accept

public void accept(org.sejda.sambox.pdmodel.PDDocument p)

Specified by:

accept in interface Consumer<org.sejda.sambox.pdmodel.PDDocument>

clean

public void clean(org.sejda.sambox.pdmodel.PDPage page)