org.sejda.impl.sambox.component.optimization

Class ResourcesHitter

java.lang.Object

org.sejda.sambox.contentstream.PDFStreamEngine

org.sejda.impl.sambox.component.ContentStreamProcessor

org.sejda.impl.sambox.component.optimization.ResourcesHitter

All Implemented Interfaces:

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

public class ResourcesHitter
extends ContentStreamProcessor

Component that parses the page content steam and the page annotations appearance stream, wraps any image xobject (type xobject, subtype image) found in an instance of ReadOnlyFilteredCOSStream, every font in an instance of InUseFontDictionary and puts them back into the resource dictionary. It's later easy to identify xobjects and fonts in use by the page/s and what can be discarded.

Author:

Andrea Vacondio

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ResourcesHitter.FontsHitterOperator Tf operator that wraps a font dictionary with an InUseFontDictionary and puts it back to the resource dictionary so that we can later identify fonts that are actually used
static class	ResourcesHitter.XObjectHitterOperator

Constructor Summary

Constructors

Constructor and Description
ResourcesHitter()

Method Summary

Methods inherited from class org.sejda.impl.sambox.component.ContentStreamProcessor

accept

Methods inherited from class org.sejda.sambox.contentstream.PDFStreamEngine

addOperator, addOperatorIfAbsent, applyTextAdjustment, beginText, endText, getAppearance, getCurrentPage, getGraphicsStackSize, getGraphicsState, getInitialMatrix, getResources, getTextLineMatrix, getTextMatrix, operatorException, processAnnotation, processChildStream, processOperator, processOperator, processPage, processSoftMask, processStream, processTilingPattern, processTilingPattern, processTransparencyGroup, processType3Stream, restoreGraphicsStack, restoreGraphicsState, saveGraphicsStack, saveGraphicsState, setLineDashPattern, setTextLineMatrix, setTextMatrix, showAnnotation, showFontGlyph, showForm, showGlyph, showText, showTextString, showTextStrings, showTransparencyGroup, showType3Glyph, transformedPoint, transformWidth, unsupportedOperator

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

ResourcesHitter

public ResourcesHitter()