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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.contentstream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.pdfbox.pdmodel.PDResources;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.util.Matrix;
/**
* A content stream.
*
* @author John Hewson
*/
public interface PDContentStream
{
/**
* Returns this stream's content, if any.
*
* @return An InputStream or null.
* @throws IOException If the stream could not be read
*/
InputStream getContents() throws IOException;
/**
* Returns this stream's resources, if any.
*/
PDResources getResources();
/**
* Returns the bounding box of the contents.
*/
PDRectangle getBBox();
/**
* Returns the matrix which transforms from the stream's space to user space.
*/
Matrix getMatrix();
}