/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2017 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, Kevin Day, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: sales@itextpdf.com
*/
package com.itextpdf.text.pdf;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Document;
import com.itextpdf.text.io.WindowRandomAccessSource;
import com.itextpdf.text.io.RandomAccessSourceFactory;
/**
* @author kevin day, Trumpet, Inc.
*/
public class TestPdfCopyAndStamp {
File base = new File(".");
String[] in;
Map<String, byte[]> pdfContent = new HashMap<String, byte[]>();
String out;
String stamp;
String multiPageStamp;
private void createReader(String name, String[] pageContents) throws Exception{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Document document = new Document();
PdfWriter.getInstance(document, baos);
document.open();
for (int i = 0; i < pageContents.length; i++) {
if (i != 0)
document.newPage();
String content = pageContents[i];
Chunk contentChunk = new Chunk(content);
document.add(contentChunk);
}
document.close();
pdfContent.put(name, baos.toByteArray());
}
@Before
public void setUp() throws Exception {
in = new String[]{
"content1.pdf",
"content2.pdf",
};
stamp = "Stamp.PDF";
multiPageStamp = "MultiStamp.PDF";
out = "TestOut.pdf";
createReader(in[0], new String[]{"content 1"});
createReader(in[1], new String[]{"content 2"});
createReader(stamp, new String[]{" This is a stamp"});
createReader(multiPageStamp, new String[]{" This is a stamp - page 1", " This is a stamp - page 2"});
}
@After
public void tearDown() throws Exception {
}
public void mergeAndStampPdf(boolean resetStampEachPage, String[] in, String out, String stamp) throws Exception {
PdfReader stampReader = new PdfReader(pdfContent.get(stamp));
List<PdfReader> readersToClose = new ArrayList<PdfReader>();
readersToClose.add(stampReader);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try{
Document document = new Document();
PdfCopy writer = new PdfSmartCopy(document, baos);
try{
document.open();
int stampPageNum = 1;
for (String element : in) {
// create a reader for the input document
PdfReader documentReader = new PdfReader(
new RandomAccessFileOrArray(
new RandomAccessSourceFactory().createSource(pdfContent.get(element))
)
, null);
for (int pageNum = 1; pageNum <= documentReader.getNumberOfPages(); pageNum++){
// import a page from the main file
PdfImportedPage mainPage = writer.getImportedPage(documentReader, pageNum);
// make a stamp from the page and get under content...
PdfCopy.PageStamp pageStamp = writer.createPageStamp(mainPage);
// import a page from a file with the stamp...
if (resetStampEachPage){
stampReader = new PdfReader(pdfContent.get(stamp));
readersToClose.add(stampReader);
}
PdfImportedPage stampPage = writer.getImportedPage(stampReader, stampPageNum++);
// add the stamp template, update stamp, and add the page
pageStamp.getOverContent().addTemplate(stampPage, 0, 0);
pageStamp.alterContents();
writer.addPage(mainPage);
if (stampPageNum > stampReader.getNumberOfPages())
stampPageNum = 1;
}
}
} finally {
writer.close();
document.close();
}
} finally {
for (PdfReader stampReaderToClose : readersToClose) {
stampReaderToClose.close();
}
}
pdfContent.put(out, baos.toByteArray());
}
protected void testXObject(boolean shouldExist, int page, String xObjectName) throws Exception{
PdfReader reader = null;
RandomAccessFileOrArray raf = null;
raf = new RandomAccessFileOrArray(pdfContent.get(out));
reader = new PdfReader(raf, null);
try{
PdfDictionary dictionary = reader.getPageN(page);
PdfDictionary resources = (PdfDictionary)dictionary.get(PdfName.RESOURCES);
PdfDictionary xobject = (PdfDictionary)resources.get(PdfName.XOBJECT);
PdfObject directXObject = xobject.getDirectObject(new PdfName(xObjectName));
PdfObject indirectXObject = xobject.get(new PdfName(xObjectName));
if (shouldExist){
assertNotNull(indirectXObject);
assertNotNull(directXObject);
} else {
assertNull(indirectXObject);
assertNull(directXObject);
}
} finally {
reader.close();
}
}
@Test
public void testWithReloadingStampReader() throws Exception{
mergeAndStampPdf(true, in, out, stamp);
testXObject(true, 1, "Xi0");
testXObject(true, 2, "Xi1");
}
@Test
public void testWithoutReloadingStampReader() throws Exception{
mergeAndStampPdf(false, in, out, stamp);
//openFile(out); // if you open the resultant PDF at this point and go to page 2, you will get a nice error message
testXObject(true, 1, "Xi0");
testXObject(true, 2, "Xi1"); // if we are able to optimize iText so it re-uses the same XObject for multiple imports of the same page from the same PdfReader, then switch this to false
}
@Test
public void testMultiPageStampWithoutReloadingStampReader() throws Exception{
mergeAndStampPdf(false, in, out, multiPageStamp);
// openFile(out); // if you open the resultant PDF at this point and go to page 2, you will get a nice error message
testXObject(true, 1, "Xi0");
testXObject(true, 2, "Xi1");
}
@Test
public void testMultiPageStampWithReloadingStampReader() throws Exception{
mergeAndStampPdf(true, in, out, multiPageStamp);
// openFile(out); // if you open the resultant PDF at this point and go to page 2, you will get a nice error message
testXObject(true, 1, "Xi0");
testXObject(true, 2, "Xi1");
}
// private void openFile(File f) throws IOException{
// String[] params = new String[]{
// "rundll32",
// "url.dll,FileProtocolHandler",
// "\"" + f.getCanonicalPath() + "\""
// };
// Runtime.getRuntime().exec(params);
// }
}