Examples with PdfReader com.itextpdf.text.pdf.PdfReader used on opensource projects

Example 16 with PdfReader

use of com.itextpdf.text.pdf.PdfReader in project trainning by fernandotomasio.

the class ReportUtil method setBackground.

public byte[] setBackground(byte[] documentSource, String url) {
    PdfReader reader = null;
    PdfStamper stamp = null;
    ByteArrayOutputStream byteArray = null;
    try {
        byteArray = new ByteArrayOutputStream();
        reader = new PdfReader(documentSource);
        int n = reader.getNumberOfPages();
        // Create a stamper that will copy the document to a new file
        stamp = new PdfStamper(reader, byteArray);
        int i = 1;
        PdfContentByte under;
        PdfContentByte over;
        Image image = Image.getInstance(url);
        image.scaleToFit(PageSize.A4.getWidth(), PageSize.A4.getHeight());
        image.setAbsolutePosition(0, 0);
        // image.setAbsolutePosition(200, 400);
        while (i <= n) {
            // Watermark under the existing page
            under = stamp.getUnderContent(i);
            under.addImage(image);
            // Text over the existing page
            // over = stamp.getOverContent(i);
            // over.beginText();
            // over.setFontAndSize(bf, 18);
            // over.showText("page " + i);
            // over.endText();
            i++;
        }
        stamp.close();
    } catch (DocumentException ex) {
        Logger.getLogger(ReportUtil.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return byteArray.toByteArray();
}

Example 17 with PdfReader

use of com.itextpdf.text.pdf.PdfReader in project pancm_project by xuwujing.

the class DownPdf method createAllPdf.

public void createAllPdf() throws Exception {
    // 填充创建pdf
    PdfReader reader = null;
    PdfStamper stamp = null;
    try {
        reader = new PdfReader("E:/module.pdf");
        SimpleDateFormat simp = new SimpleDateFormat("yyyy-MM-dd");
        String times = simp.format(new Date()).trim();
        // 创建生成报告名称
        String root = "E:/pdf" + File.separator;
        if (!new File(root).exists())
            new File(root).mkdirs();
        File deskFile = new File(root, times + ".pdf");
        stamp = new PdfStamper(reader, new FileOutputStream(deskFile));
        // 取出报表模板中的所有字段
        AcroFields form = stamp.getAcroFields();
        // 填充数据
        form.setField("name", "zhangsan");
        form.setField("sex", "男");
        form.setField("age", "15");
        // 报告生成日期
        SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd");
        String generationdate = dateformat.format(new Date());
        form.setField("generationdate", generationdate);
        stamp.setFormFlattening(true);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (stamp != null) {
            stamp.close();
        }
        if (reader != null) {
            reader.close();
        }
    }
}

Example 18 with PdfReader

use of com.itextpdf.text.pdf.PdfReader in project spring-cloud-digital-sign by SpringForAll.

the class Sign method sign.

/**
 * 单多次签章通用
 * @param src string source pdf
 * @param target string target pdf
 * @param signatureInfos SignatureInfo
 */
public static void sign(String src, String target, SignatureInfo... signatureInfos) {
    InputStream inputStream = null;
    FileOutputStream outputStream = null;
    ByteArrayOutputStream result = new ByteArrayOutputStream();
    try {
        inputStream = new FileInputStream(src);
        for (SignatureInfo signatureInfo : signatureInfos) {
            ByteArrayOutputStream tempArrayOutputStream = new ByteArrayOutputStream();
            PdfReader reader = new PdfReader(inputStream);
            // 创建签章工具PdfStamper ，最后一个boolean参数是否允许被追加签名
            PdfStamper stamper = PdfStamper.createSignature(reader, tempArrayOutputStream, '\0', null, true);
            // 获取数字签章属性对象
            PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
            appearance.setReason(signatureInfo.getReason());
            appearance.setLocation(signatureInfo.getLocation());
            // 设置签名的签名域名称，多次追加签名的时候，签名预名称不能一样，图片大小受表单域大小影响（过小导致压缩）
            appearance.setVisibleSignature(signatureInfo.getFieldName());
            // 读取图章图片
            Image image = Image.getInstance(signatureInfo.getImagePath());
            appearance.setSignatureGraphic(image);
            appearance.setCertificationLevel(signatureInfo.getCertificationLevel());
            // 设置图章的显示方式，如下选择的是只显示图章（还有其他的模式，可以图章和签名描述一同显示）
            appearance.setRenderingMode(signatureInfo.getRenderingMode());
            /**
             * 粘贴图片
             */
            // PdfContentByte over = stamper.getOverContent(1);
            // image.setAbsolutePosition(0 , 0);
            // image.scaleToFit(300 , 109);
            // over.addImage(image);
            // 摘要算法
            ExternalDigest digest = new BouncyCastleDigest();
            // 签名算法
            ExternalSignature signature = new PrivateKeySignature(signatureInfo.getPk(), signatureInfo.getDigestAlgorithm(), null);
            // 调用itext签名方法完成pdf签章
            MakeSignature.signDetached(appearance, digest, signature, signatureInfo.getChain(), null, null, null, 0, signatureInfo.getSubfilter());
            // 定义输入流为生成的输出流内容，以完成多次签章的过程
            inputStream = new ByteArrayInputStream(tempArrayOutputStream.toByteArray());
            result = tempArrayOutputStream;
        }
        outputStream = new FileOutputStream(new File(target));
        outputStream.write(result.toByteArray());
        outputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (null != outputStream) {
                outputStream.close();
            }
            if (null != inputStream) {
                inputStream.close();
            }
            if (null != result) {
                result.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}