本文整理汇总了Java中com.lowagie.text.pdf.PdfStamper.getUnderContent方法的典型用法代码示例。如果您正苦于以下问题：Java PdfStamper.getUnderContent方法的具体用法？Java PdfStamper.getUnderContent怎么用？Java PdfStamper.getUnderContent使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.lowagie.text.pdf.PdfStamper的用法示例。
在下文中一共展示了PdfStamper.getUnderContent方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: main
import com.lowagie.text.pdf.PdfStamper; //导入方法依赖的package包/类
/**
* Reads the pages of an existing PDF file, adds pagenumbers and a watermark.
*/
@Test
public void main() throws Exception {
// we create a reader for a certain document
PdfReader reader = new PdfReader(PdfTestBase.RESOURCES_DIR +"ChapterSection.pdf");
int n = reader.getNumberOfPages();
// we create a stamper that will copy the document to a new file
PdfStamper stamp = new PdfStamper(reader,PdfTestBase.getOutputStream("watermark_pagenumbers.pdf"));
// adding some metadata
HashMap<String, String> moreInfo = new HashMap<String, String>();
moreInfo.put("Author", "Bruno Lowagie");
stamp.setMoreInfo(moreInfo);
// adding content to each page
int i = 0;
PdfContentByte under;
PdfContentByte over;
Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR +"watermark.jpg");
BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.EMBEDDED);
img.setAbsolutePosition(200, 400);
while (i < n) {
i++;
// watermark under the existing page
under = stamp.getUnderContent(i);
under.addImage(img);
// text over the existing page
over = stamp.getOverContent(i);
over.beginText();
over.setFontAndSize(bf, 18);
over.setTextMatrix(30, 30);
over.showText("page " + i);
over.setFontAndSize(bf, 32);
over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE", 230, 430, 45);
over.endText();
}
// adding an extra page
stamp.insertPage(1, PageSize.A4);
over = stamp.getOverContent(1);
over.beginText();
over.setFontAndSize(bf, 18);
over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE OF AN EXISTING PDF DOCUMENT", 30, 600, 0);
over.endText();
// adding a page from another document
PdfReader reader2 = new PdfReader(PdfTestBase.RESOURCES_DIR +"SimpleAnnotations1.pdf");
under = stamp.getUnderContent(1);
under.addTemplate(stamp.getImportedPage(reader2, 3), 1, 0, 0, 1, 0, 0);
// closing PdfStamper will generate the new PDF file
stamp.close();
}
示例2: main
import com.lowagie.text.pdf.PdfStamper; //导入方法依赖的package包/类
/**
* Reads the pages of an existing PDF file, adds pagenumbers and a
* watermark.
*
* @param args
* no arguments needed
*/
public static void main(String[] args) {
System.out.println("Add watermarks and pagenumbers");
try {
// we create a reader for a certain document
//Can't use filename directly
//PdfReader reader = new PdfReader("chaptersection.pdf");
PdfReader reader = new PdfReader(PdfTestRunner.getActivity().getResources().openRawResource(R.raw.chaptersection));
int n = reader.getNumberOfPages();
// we create a stamper that will copy the document to a new file
PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(android.os.Environment.getExternalStorageDirectory() + java.io.File.separator + "droidtext" + java.io.File.separator + "watermark_pagenumbers.pdf"));
// adding some metadata
HashMap moreInfo = new HashMap();
moreInfo.put("Author", "Bruno Lowagie");
stamp.setMoreInfo(moreInfo);
// adding content to each page
int i = 0;
PdfContentByte under;
PdfContentByte over;
//Can't use filename => use byte[] instead
// Image img = Image.getInstance("watermark.jpg");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Bitmap bitmap = BitmapFactory.decodeResource(PdfTestRunner.getActivity().getResources(), R.drawable.watermark);
bitmap.compress(Bitmap.CompressFormat.JPEG /* FileType */,
100 /* Ratio */, stream);
Image img = Image.getInstance(stream.toByteArray());
BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.EMBEDDED);
img.setAbsolutePosition(200, 400);
while (i < n) {
i++;
// watermark under the existing page
under = stamp.getUnderContent(i);
under.addImage(img);
// text over the existing page
over = stamp.getOverContent(i);
over.beginText();
over.setFontAndSize(bf, 18);
over.setTextMatrix(30, 30);
over.showText("page " + i);
over.setFontAndSize(bf, 32);
over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE", 230, 430, 45);
over.endText();
}
// adding an extra page
stamp.insertPage(1, PageSize.A4);
over = stamp.getOverContent(1);
over.beginText();
over.setFontAndSize(bf, 18);
over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE OF AN EXISTING PDF DOCUMENT", 30, 600, 0);
over.endText();
// adding a page from another document
//Can't use filename directly
// PdfReader reader2 = new PdfReader("SimpleAnnotations1.pdf");
PdfReader reader2 = new PdfReader(PdfTestRunner.getActivity().getResources().openRawResource(R.raw.simpleannotations1));
under = stamp.getUnderContent(1);
under.addTemplate(stamp.getImportedPage(reader2, 3), 1, 0, 0, 1, 0, 0);
// closing PdfStamper will generate the new PDF file
stamp.close();
} catch (Exception de) {
de.printStackTrace();
}
}