Example usage for com.itextpdf.text.pdf PdfReader getPdfObjectRelease

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfReader getPdfObjectRelease.

Prototype

public PdfObject getPdfObjectRelease(final int idx) 

Source Link

Usage

From source file:de.offis.health.icardea.cied.pdf.extractor.PDFiText5Extractor.java

License:GNU General Public License

@SuppressWarnings("unchecked")
public java.util.List getBookmarkTitlesAsText() {
    java.util.List bookmarkContent = null;
    if (pdfReader != null) {
        //bookmarkContent = SimpleBookmark.getBookmark(pdfReader);

        PdfDictionary catalog = pdfReader.getCatalog();
        if (catalog != null) {
            PdfObject rootPdfObject = PdfReader.getPdfObjectRelease(catalog.get(PdfName.OUTLINES));
            if (rootPdfObject != null && rootPdfObject.isDictionary()) {
                PdfDictionary rootOutlinesPdfDictionary = (PdfDictionary) rootPdfObject;
                /*/*from www .  j a va2s .c  o m*/
                 * If it doesn't exist create the List and populate it,
                 * otherwise just return the already existing List.
                 */
                if (bookmarkTextList == null) {
                    bookmarkTextList = new ArrayList<String>();

                    // Populate the List
                    populateBookmarkTextList(rootOutlinesPdfDictionary, "");
                } // end if

            }
        } // end if
    }
    return bookmarkContent;
}

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From source file:de.offis.health.icardea.cied.pdf.extractor.PDFiText5Extractor.java

License:GNU General Public License

/**
 * This method will populate the text bookmark list.
 * /* w w w. j a v  a2  s  .  com*/
 * @param rootOutlinesPdfDictionary The node element for the bookmark item.
 * @param indentionString The base indention string to be used.
 */
@SuppressWarnings("unchecked")
private void populateBookmarkTextList(PdfDictionary rootOutlinesPdfDictionary, String indentionString) {
    PdfDictionary outlineItemPdfDictionary = (PdfDictionary) PdfReader
            .getPdfObjectRelease(rootOutlinesPdfDictionary.get(PdfName.FIRST));
    while (outlineItemPdfDictionary != null) {
        PdfString bookmarkTitle = (PdfString) PdfReader
                .getPdfObjectRelease(outlineItemPdfDictionary.get(PdfName.TITLE));
        bookmarkTextList.add(indentionString + bookmarkTitle.toUnicodeString());
        logger.trace(indentionString + bookmarkTitle.toUnicodeString());

        /*
         * Recursive call to fill List
         */
        populateBookmarkTextList(outlineItemPdfDictionary, indentionString + bookmarkIndentionString());

        /*
         * Get next outline item
         */
        outlineItemPdfDictionary = (PdfDictionary) PdfReader
                .getPdfObjectRelease(outlineItemPdfDictionary.get(PdfName.NEXT));
    } // end while
}

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From source file:pl.edu.icm.cermine.structure.ITextCharacterExtractor.java

License:Open Source License

/**
 * Processes PDF's fonts dictionary. During the process alternative names
 * of Standard 14 Fonts are changed to the standard ones, provided that
 * the font definition doesn't include Widths array.
 *
 * Font dictionary in PDF file often includes an array of individual glyphs' widths.
 * Widths array is always required except for the Standard 14 Fonts, which widths
 * are kept by iText itself. Unfortunately, if the font uses alternative name instead of
 * standard one (see PDF Reference 1.7, table H.3), iText doesn't recognize the font as
 * one of the Standard 14 Fonts, and is unable to determine glyphs widths. In such cases
 * this method will change alternative names to standard ones before PDF's parsing process
 *//*from w  ww .j av  a  2 s .c  o  m*/
private void processAlternativeFontNames(PdfDictionary resources) {
    if (resources == null) {
        return;
    }
    PdfDictionary fontsDictionary = resources.getAsDict(PdfName.FONT);

    if (fontsDictionary == null) {
        return;
    }
    for (PdfName pdfFontName : fontsDictionary.getKeys()) {
        if (!(fontsDictionary.get(pdfFontName) instanceof PRIndirectReference)) {
            return;
        }
        PRIndirectReference indRef = (PRIndirectReference) fontsDictionary.get(pdfFontName);
        if (!(PdfReader.getPdfObjectRelease(indRef) instanceof PdfDictionary)) {
            return;
        }
        PdfDictionary fontDictionary = (PdfDictionary) PdfReader.getPdfObjectRelease(indRef);

        PdfName baseFont = fontDictionary.getAsName(PdfName.BASEFONT);
        if (baseFont != null) {
            String fontName = PdfName.decodeName(baseFont.toString());
            if (fontDictionary.getAsArray(PdfName.WIDTHS) == null
                    && ALT_TO_STANDART_FONTS.containsKey(fontName)) {
                fontDictionary.put(PdfName.BASEFONT, ALT_TO_STANDART_FONTS.get(fontName));
            }
        }
    }
}

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