Example usage for com.itextpdf.text.pdf PdfArray listIterator

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfArray listIterator.

Prototype

public ListIterator<PdfObject> listIterator() 

Source Link

Document

Returns the list iterator for the array.

Usage

From source file:commentextractor.CommentExtractorApp.java

License:GNU General Public License

static String extractComments(String filename, int first, int last) {
    StringBuffer output = null;/*from w  w  w .  ja v  a  2s  . c om*/
    try {
        PdfReader reader = new PdfReader(filename);

        if (last >= reader.getNumberOfPages() || (last == -1)) {
            last = reader.getNumberOfPages();
        }

        output = new StringBuffer(1024);

        for (int i = first; i <= last; i++) {

            PdfDictionary page = reader.getPageN(i);
            PdfArray annotsArray = null;

            if (page.getAsArray(PdfName.ANNOTS) == null) {
                continue;
            }

            annotsArray = page.getAsArray(PdfName.ANNOTS);
            for (ListIterator<PdfObject> iter = annotsArray.listIterator(); iter.hasNext();) {
                PdfDictionary annot = (PdfDictionary) PdfReader.getPdfObject(iter.next());
                PdfString content = (PdfString) PdfReader.getPdfObject(annot.get(PdfName.CONTENTS));
                if (content != null) {
                    output.append("----------\n");
                    output.append("Page " + i);
                    output.append("\n");
                    output.append(content.toUnicodeString().replaceAll("\r", "\r\n"));
                    output.append("\n");
                }
            }
        }
    } catch (Exception e) {
        Logger.getLogger(CommentExtractorApp.class.getName()).log(Level.SEVERE, null, e);
    }
    return new String(output);
}

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