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Sample Java code for using Apryse SDK to programmatically stamp PDF pages with text, images, or with other PDF pages. ElementBuilder and ElementWriter should be used for more complex PDF stamping operations. Learn more about our Java PDF Library.
Get Started Samples DownloadTo run this sample, get started with a free trial of Apryse SDK.
//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2019 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------
package com.pdftron.android.pdfnetsdksamples.samples;
import com.pdftron.android.pdfnetsdksamples.OutputListener;
import com.pdftron.android.pdfnetsdksamples.PDFNetSample;
import com.pdftron.android.pdfnetsdksamples.R;
import com.pdftron.android.pdfnetsdksamples.util.Utils;
import com.pdftron.pdf.ColorPt;
import com.pdftron.pdf.Font;
import com.pdftron.pdf.Image;
import com.pdftron.pdf.PDFDoc;
import com.pdftron.pdf.Page;
import com.pdftron.pdf.PageSet;
import com.pdftron.pdf.Rect;
import com.pdftron.pdf.Stamper;
import com.pdftron.sdf.SDFDoc;
import java.util.ArrayList;
/**
* The following sample shows how to add new content (or watermark) PDF pages
* using 'com.pdftron.pdf.Stamper' utility class.
* <p>
* Stamper can be used to PDF pages with text, images, or with other PDF content
* in only a few lines of code. Although Stamper is very simple to use compared
* to ElementBuilder/ElementWriter it is not as powerful or flexible. In case you
* need full control over PDF creation use ElementBuilder/ElementWriter to add
* new content to existing PDF pages as shown in the ElementBuilder sample project.
*/
public class StamperTest extends PDFNetSample {
private static OutputListener mOutputListener;
private static ArrayList<String> mFileList = new ArrayList<>();
public StamperTest() {
setTitle(R.string.sample_stamper_title);
setDescription(R.string.sample_stamper_description);
}
@Override
public void run(OutputListener outputListener) {
super.run(outputListener);
mOutputListener = outputListener;
mFileList.clear();
printHeader(outputListener);
String input_filename = "newsletter";
//--------------------------------------------------------------------------------
// Example 1) Add text stamp to all pages, then remove text stamp from odd pages.
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, 0.5, 0.5);
s.setAlignment(Stamper.e_horizontal_center, Stamper.e_vertical_center);
ColorPt red = new ColorPt(1, 0, 0); // set text color to red
s.setFontColor(red);
String msg = "If you are reading this\nthis is an even page";
PageSet ps = new PageSet(1, doc.getPageCount());
s.stampText(doc, msg, ps);
//delete all text stamps in even pages
PageSet ps1 = new PageSet(1, doc.getPageCount(), PageSet.e_odd);
Stamper.deleteStamps(doc, ps1);
doc.save(Utils.createExternalFile(input_filename + ".ex1.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 2) Add Image stamp to first 2 pages.
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, .05, .05);
Image img = Image.create(doc, Utils.getAssetTempFile(INPUT_PATH + "peppers.jpg").getAbsolutePath());
s.setSize(Stamper.e_relative_scale, 0.5, 0.5);
//set position of the image to the center, left of PDF pages
s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_center);
ColorPt pt = new ColorPt(0, 0, 0, 0);
s.setFontColor(pt);
s.setRotation(180);
s.setAsBackground(false);
//only stamp first 2 pages
PageSet ps = new PageSet(1, 2);
s.stampImage(doc, img, ps);
doc.save(Utils.createExternalFile(input_filename + ".ex2.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 3) Add Page stamp to all pages.
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
try (PDFDoc fish_doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + "fish.pdf").getAbsolutePath())) {
fish_doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, 0.5, 0.5);
Page src_page = fish_doc.getPage(1);
Rect page_one_crop = src_page.getCropBox();
// set size of the image to 10% of the original while keep the old aspect ratio
s.setSize(Stamper.e_absolute_size, page_one_crop.getWidth() * 0.1, -1);
s.setOpacity(0.4);
s.setRotation(-67);
//put the image at the bottom right hand corner
s.setAlignment(Stamper.e_horizontal_right, Stamper.e_vertical_bottom);
PageSet ps = new PageSet(1, doc.getPageCount());
s.stampPage(doc, src_page, ps);
doc.save(Utils.createExternalFile(input_filename + ".ex3.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
}
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 4) Add Image stamp to first 20 odd pages.
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_absolute_size, 20, 20);
s.setOpacity(1);
s.setRotation(45);
s.setAsBackground(true);
s.setPosition(30, 40);
Image img = Image.create(doc, Utils.getAssetTempFile(INPUT_PATH + "peppers.jpg").getAbsolutePath());
PageSet ps = new PageSet(1, 20, PageSet.e_odd);
s.stampImage(doc, img, ps);
doc.save(Utils.createExternalFile(input_filename + ".ex4.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 5) Add text stamp to first 20 even pages
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, .05, .05);
s.setPosition(0, 0);
s.setOpacity(0.7);
s.setRotation(90);
s.setSize(Stamper.e_font_size, 80, -1);
s.setTextAlignment(Stamper.e_align_center);
PageSet ps = new PageSet(1, 20, PageSet.e_even);
s.stampText(doc, "Goodbye\nMoon", ps);
doc.save(Utils.createExternalFile(input_filename + ".ex5.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 6) Add first page as stamp to all even pages
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
PDFDoc fish_doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + "fish.pdf").getAbsolutePath());
fish_doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, 0.3, 0.3);
s.setOpacity(1);
s.setRotation(270);
s.setAsBackground(true);
s.setPosition(0.5, 0.5, true);
s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_bottom);
Page page_one = fish_doc.getPage(1);
PageSet ps = new PageSet(1, doc.getPageCount(), PageSet.e_even);
s.stampPage(doc, page_one, ps);
doc.save(Utils.createExternalFile(input_filename + ".ex6.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 7) Add image stamp at top right corner in every pages
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, .1, .1);
s.setOpacity(0.8);
s.setRotation(135);
s.setAsBackground(false);
s.showsOnPrint(false);
s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_top);
s.setPosition(10, 10);
Image img = Image.create(doc, Utils.getAssetTempFile(INPUT_PATH + "peppers.jpg").getAbsolutePath());
PageSet ps = new PageSet(1, doc.getPageCount(), PageSet.e_all);
s.stampImage(doc, img, ps);
doc.save(Utils.createExternalFile(input_filename + ".ex7.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
//--------------------------------------------------------------------------------
// Example 8) Add Text stamp to first 2 pages, and image stamp to first page.
// Because text stamp is set as background, the image is top of the text
// stamp. Text stamp on the first page is not visible.
try (PDFDoc doc = new PDFDoc(Utils.getAssetTempFile(INPUT_PATH + input_filename + ".pdf").getAbsolutePath())) {
doc.initSecurityHandler();
Stamper s = new Stamper(Stamper.e_relative_scale, 0.07, -0.1);
s.setAlignment(Stamper.e_horizontal_right, Stamper.e_vertical_bottom);
s.setAlignment(Stamper.e_horizontal_center, Stamper.e_vertical_top);
s.setFont(Font.create(doc, Font.e_courier, true));
ColorPt red = new ColorPt(1, 0, 0, 0);
s.setFontColor(red); //set color to red
s.setTextAlignment(Stamper.e_align_right);
s.setAsBackground(true); //set text stamp as background
PageSet ps = new PageSet(1, 2);
s.stampText(doc, "This is a title!", ps);
Image img = Image.create(doc, Utils.getAssetTempFile(INPUT_PATH + "peppers.jpg").getAbsolutePath());
s.setAsBackground(false); // set image stamp as foreground
PageSet first_page_ps = new PageSet(1);
s.stampImage(doc, img, first_page_ps);
doc.save(Utils.createExternalFile(input_filename + ".ex8.pdf", mFileList).getAbsolutePath(), SDFDoc.SaveMode.LINEARIZED, null);
} catch (Exception e) {
mOutputListener.printError(e.getStackTrace());
return;
}
for (String file : mFileList) {
addToFileList(file);
}
printFooter(outputListener);
}
//---------------------------------------------------------------------------------------
// The following sample shows how to add new content (or watermark) PDF pages
// using 'pdftron.PDF.Stamper' utility class.
//
// Stamper can be used to PDF pages with text, images, or with other PDF content
// in only a few lines of code. Although Stamper is very simple to use compared
// to ElementBuilder/ElementWriter it is not as powerful or flexible. In case you
// need full control over PDF creation use ElementBuilder/ElementWriter to add
// new content to existing PDF pages as shown in the ElementBuilder sample project.
//---------------------------------------------------------------------------------------
}