使用Aspose.words for java去掉Word文档的水印（底图）

不说话，直接上代码

 

/**
 * @CopyRright (c)2011: BrokenStone
 * @Project: WordWatermark
 * @File: RemoveWordWatermark.java
 * @JDK version used: JDK1.6 @<br/>
 * @Author: BrokenStone
 * @Blog: http://sheng.javaeye.com）
 * @Email: [email protected]
 * @since: 2012-1-13
 * @Ver: 1.0
 */
package com.iteye.sheng.utils.tools.office;

import java.awt.Color;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;

import com.aspose.words.Document;
import com.aspose.words.HeaderFooter;
import com.aspose.words.HeaderFooterType;
import com.aspose.words.HorizontalAlignment;
import com.aspose.words.License;
import com.aspose.words.Paragraph;
import com.aspose.words.RelativeHorizontalPosition;
import com.aspose.words.RelativeVerticalPosition;
import com.aspose.words.Section;
import com.aspose.words.Shape;
import com.aspose.words.ShapeType;
import com.aspose.words.VerticalAlignment;
import com.aspose.words.WrapType;

/**
 * @author ShengYoufu
 * 
 */
public class RemoveWordWatermark {

	public static void main(String[] args) throws Exception {
		// Sample infrastructure.
//		URI exeDir = RemoveWordWatermark.class.getResource("").toURI();
//		String dataDir = new File(exeDir.resolve("../../Data")) + File.separator;
//		Document doc = new Document(dataDir + "TestFile.doc");
//		insertWatermarkText(doc, "CONFIDENTIAL");
//		doc.save(dataDir + "TestFile Out.doc");
		loadLicense();
		Document doc = new Document("c:/with_watermark.doc");
		removeWatermark(doc);
		doc.save("c:/without_watermark.doc");
	}

	/**
	 * 
	 * Inserts a watermark into a document.
	 * 
	 * @param doc The input document.
	 * @param watermarkText Text of the watermark.
	 * 
	 */
	private static void insertWatermarkText(Document doc, String watermarkText) throws Exception {
		// Create a watermark shape. This will be a WordArt shape.
		// You are free to try other shape types as watermarks.
		Shape watermark = new Shape(doc, ShapeType.TEXT_PLAIN_TEXT);
		// Set up the text of the watermark.
		watermark.getTextPath().setText(watermarkText);
		watermark.getTextPath().setFontFamily("Arial");
		watermark.setWidth(500);
		watermark.setHeight(100);
		// Text will be directed from the bottom-left to the top-right corner.
		watermark.setRotation(-40);
		// Remove the following two lines if you need a solid black text.
		watermark.getFill().setColor(Color.GRAY); // Try LightGray to get more Word-style watermark
		watermark.setStrokeColor(Color.GRAY); // Try LightGray to get more Word-style watermark
		// Place the watermark in the page center.
		watermark.setRelativeHorizontalPosition(RelativeHorizontalPosition.PAGE);
		watermark.setRelativeVerticalPosition(RelativeVerticalPosition.PAGE);
		watermark.setWrapType(WrapType.NONE);
		watermark.setVerticalAlignment(VerticalAlignment.CENTER);
		watermark.setHorizontalAlignment(HorizontalAlignment.CENTER);
		// Create a new paragraph and append the watermark to this paragraph.
		Paragraph watermarkPara = new Paragraph(doc);
		watermarkPara.appendChild(watermark);
		// Insert the watermark into all headers of each document section.
		for (Section sect : doc.getSections()) {
			// There could be up to three different headers in each section, since we want
			// the watermark to appear on all pages, insert into all headers.
			insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_PRIMARY);
			insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_FIRST);
			insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_EVEN);
		}
	}

	/**
	 * 插入水印
	 * @param watermarkPara
	 * @param sect
	 * @param headerType
	 * @throws Exception
	 */
	private static void insertWatermarkIntoHeader(Paragraph watermarkPara, Section sect, int headerType) throws Exception {
		HeaderFooter header = sect.getHeadersFooters().getByHeaderFooterType(headerType);
		if (header == null) {
			// There is no header of the specified type in the current section, create it.
			header = new HeaderFooter(sect.getDocument(), headerType);
			sect.getHeadersFooters().add(header);
		}

		// Insert a clone of the watermark into the header.
		header.appendChild(watermarkPara.deepClone(true));
	}

	/**
	 * 移除全部水印
	 * @param doc
	 * @throws Exception
	 */
	private static void removeWatermark(Document doc) throws Exception {
		for (Section sect : doc.getSections()) {
			// There could be up to three different headers in each section, since we want
			// the watermark to appear on all pages, insert into all headers.
			removeWatermarkFromHeader(sect, HeaderFooterType.HEADER_PRIMARY);
			removeWatermarkFromHeader(sect, HeaderFooterType.HEADER_FIRST);
			removeWatermarkFromHeader(sect, HeaderFooterType.HEADER_EVEN);
		}
	}
	
	/**
	 * 移除指定Section的水印
	 * @param sect
	 * @param headerType
	 * @throws Exception
	 */
	private static void removeWatermarkFromHeader(Section sect, int headerType) throws Exception {
		HeaderFooter header = sect.getHeadersFooters().getByHeaderFooterType(headerType);
		if (header != null) {
			header.removeAllChildren();
		}
	}
	
	
	/**
	 * 从Classpath（jar文件中）中读取License
	 */
	private static void loadLicense() {
	  //返回读取指定资源的输入流
	  License license = new License();
	  InputStream is = null;
	  try {
	    is = RemoveWordWatermark.class.getResourceAsStream("/resources/aspose.word.license.xml");
	    if(is==null) 
	      throw new RuntimeException("Cannot find licenses file. Please contact [email protected] or visit http://sheng.javaeye.com for get more information.");
	    license.setLicense(is);
	  } catch (Exception ex) {
	    ex.printStackTrace();
	  }finally{
	    if(is!=null){
	      try{ is.close(); }catch(IOException ex){ };
	      is = null;
	    }
	  }
	}

}