itext加全屏水印

word转pdf的时候,需要引入jacob包!
jacob包已上传到码云

https://gitee.com/kong_qing_rong/daily-component-library/tree/master/jacob%E5%8C%85
public class test {  
    static final int wdFormatPDF = 17;// PDF 格式  
    private static int interval = -5; 
  
    /**  
     * word转pdf  
     * @param fromAddress 待转文件地址  
     * @param toAddress 新文件地址  
     */  
    public static void wordToPdf(String fromAddress,String toAddress){  
        ActiveXComponent ax = null;  
        try {  
            long startTime = System.currentTimeMillis();  
            /*  
             * 创建不同的控件调用不同的值  
             * Word——Word.Application  
             * Excel——Excel.Application  
             * Powerpoint——Powerpoint.Application  
             * Outlook——Outlook.Application  
             * */  
            ax = new ActiveXComponent("Word.Application");  
            /*设置打开word文档不可见*/  
            ax.setProperty("Visible", false);  
            //获取Word文档中所有内容  
            Dispatch docs = ax.getProperty("Documents").toDispatch();  
            //打开word文档,并设置word为不可编辑和不需确认  
            Dispatch doc = Dispatch.call(docs,  
                    "Open",   
                    fromAddress,// FileName  
                    false,// ConfirmConversions  
                    true // ReadOnly  
                    ).toDispatch();  
              
            File tofile = new File(toAddress);  
            if (tofile.exists()) {  
                tofile.delete();  
            }  
            //word文件另存为pdf文件  
            Dispatch.call(doc,//  
                    "SaveAs", //  
                    toAddress, // FileName  
                    wdFormatPDF);  
            //关闭word文档  
            Dispatch.call(doc, "Close", false);  
            long endTime = System.currentTimeMillis();  
            System.out.println("转化完成,总共耗时" + (endTime - startTime) + "ms。");  
        } catch (Exception e) {  
            System.out.println("========Error:文档转换失败:" + e.getMessage());  
        } finally {  
            if (ax != null)  
                ax.invoke("Quit", new Variant[]{});  
        }  
    }  
  
    public static void waterMark(String inputFile,  
            String outputFile, String waterMarkName, String password) {  
        try {  
            PdfReader reader = new PdfReader(inputFile);  
            PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(  
                    outputFile));  
            
            byte[] ownerPassword = password.getBytes();
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_ASSEMBLY, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_COPY, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_DEGRADED_PRINTING, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_FILL_IN, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_MODIFY_ANNOTATIONS, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_MODIFY_CONTENTS, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_PRINTING, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.ALLOW_SCREENREADERS, false);
          stamper.setEncryption(null, ownerPassword, PdfWriter.DO_NOT_ENCRYPT_METADATA, true);
          stamper.setViewerPreferences(PdfWriter.HideToolbar|PdfWriter.HideMenubar);
          
            BaseFont base = BaseFont.createFont("c://windows//fonts//simsun.ttc,1" , BaseFont.IDENTITY_H, BaseFont.EMBEDDED);// 使用系统字体  
            
            Rectangle pageRect = null;
            PdfGState gs = new PdfGState();
            gs.setFillOpacity(0.3f);
            gs.setStrokeOpacity(0.4f);
            int total = reader.getNumberOfPages() + 1; 
            
            JLabel label = new JLabel();
            FontMetrics metrics;
            int textH = 0; 
            int textW = 0; 
            label.setText(waterMarkName); 
            metrics = label.getFontMetrics(label.getFont()); 
            textH = metrics.getHeight();//字符串的高,   只和字体有关 
            textW = metrics.stringWidth(label.getText());//字符串的宽 
              
            PdfContentByte under;  
            for (int i = 1; i < total; i++) { 
                pageRect = reader.getPageSizeWithRotation(i);
                // 计算水印X,Y坐标
                float x = pageRect.getWidth() / 2;
                float y = pageRect.getHeight() / 2;
                under = stamper.getOverContent(i); 
                under.saveState();
                under.setGState(gs);
                under.beginText();  
                under.setFontAndSize(base, 15);  
                // 水印文字成45度角倾斜
                for (int height = interval + textH; height < pageRect.getHeight();
                        height = height + textH*8) {  
                    for (int width = interval + textW; width < pageRect.getWidth() + textW; 
                            width = width + textW) {
                under.showTextAligned(Element.ALIGN_LEFT
                        , waterMarkName, width - textW,
                        height - textH, 45);
                    }
                }
                // 添加水印文字  
                under.endText();  
            }  
            stamper.close();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }  
    public static void concatPDFs(List<InputStream> streamOfPDFFiles,
            OutputStream outputStream, boolean paginate) {
 
        Document document = new Document();
        try {
            List<InputStream> pdfs = streamOfPDFFiles;
            List<PdfReader> readers = new ArrayList<PdfReader>();
            int totalPages = 0;
            Iterator<InputStream> iteratorPDFs = pdfs.iterator();
 
            // Create Readers for the pdfs.
            while (iteratorPDFs.hasNext()) {
                InputStream pdf = iteratorPDFs.next();
                PdfReader pdfReader = new PdfReader(pdf);
                readers.add(pdfReader);
                totalPages += pdfReader.getNumberOfPages();
            }
            // Create a writer for the outputstream
            PdfWriter writer = PdfWriter.getInstance(document, outputStream);
 
            document.open();
            BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA,
                    BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
            PdfContentByte cb = writer.getDirectContent(); // Holds the PDF
            // data
 
            PdfImportedPage page;
            int currentPageNumber = 0;
            int pageOfCurrentReaderPDF = 0;
            Iterator<PdfReader> iteratorPDFReader = readers.iterator();
 
            // Loop through the PDF files and add to the output.
            while (iteratorPDFReader.hasNext()) {
                PdfReader pdfReader = iteratorPDFReader.next();
 
                // Create a new page in the target for each source page.
                while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
                    document.newPage();
                    pageOfCurrentReaderPDF++;
                    currentPageNumber++;
                    page = writer.getImportedPage(pdfReader,
                            pageOfCurrentReaderPDF);
                    cb.addTemplate(page, 0, 0);
 
                    // Code for pagination.
                    if (paginate) {
                        cb.beginText();
                        cb.setFontAndSize(bf, 9);
                        cb.showTextAligned(PdfContentByte.ALIGN_CENTER, ""
                                + currentPageNumber + " of " + totalPages, 520,
                                5, 0);
                        cb.endText();
                    }
                }
                pageOfCurrentReaderPDF = 0;
            }
            outputStream.flush();
            document.close();
            outputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (document.isOpen())
                document.close();
            try {
                if (outputStream != null)
                    outputStream.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
    }
  
    public static void main(String[] args) {
        try {
            String to = "C:/Desktop/to.pdf";
            String wordUrl = "C:/Desktop/1501139857165.doc";
            File file = File.createTempFile("tempFile", ".pdf");
            wordToPdf(wordUrl,file.getPath());
            waterMark(file.getPath(), to, "圣贤庸才,大人小心!!!!!!!","000000");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }  
}
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