Changing the author of an annotation

This is a code example of iText PDF, discover more.

31st May 2016
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Example written in answer to the question How to change the author name for comments?

ChangeAuthor.java
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/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2019 iText Group NV
    Authors: iText Software.
 
    For more information, please contact iText Software at this address:
    sales@itextpdf.com
 */
/**
 * This example was written by Bruno Lowagie in answer to the following question:
 * https://www.linkedin.com/groups/Script-Change-Author-Name-Comments-159987.S.5984062085800144899
 */
package com.itextpdf.samples.sandbox.interactive;
 
import com.itextpdf.kernel.pdf.*;
import com.itextpdf.samples.GenericTest;
import com.itextpdf.test.annotations.type.SampleTest;
 
import org.junit.experimental.categories.Category;
 
import java.io.File;
import java.io.IOException;
 
@Category(SampleTest.class)
public class ChangeAuthor extends GenericTest {
    public static final String DEST = "./target/test/resources/sandbox/interactive/change_author.pdf";
    public static final String SRC = "./src/test/resources/pdfs/page229_annotations.pdf";
 
    public static void main(String[] args) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new ChangeAuthor().manipulatePdf(DEST);
    }
 
    public void manipulatePdf(String dest) throws IOException {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
 
        PdfDictionary pageDict = pdfDoc.getFirstPage().getPdfObject();
        PdfArray annots = pageDict.getAsArray(PdfName.Annots);
        if (annots != null) {
            for (int i = 0; i < annots.size(); i++) {
                changeAuthor(annots.getAsDictionary(i));
            }
        }
 
        pdfDoc.close();
    }
 
    public void changeAuthor(PdfDictionary annotation) {
        if (annotation == null) {
            return;
        }
        PdfString t = annotation.getAsString(PdfName.T);
        if (t == null) {
            return;
        }
        if ("iText".equals(t.toString())) {
            annotation.put(PdfName.T, new PdfString("Bruno Lowagie"));
        }
    }
}

Click the following link to see the legacy example for iText 5. Except for security fixes, iText 5 is no longer being developed.



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