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

Introduction

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

Prototype

public boolean isEmpty() 

Source Link

Document

Returns true if the array is empty.

Usage

From source file:de.gbv.marginalia.Marginalia.java

License:Open Source License

/**
 * Inspect a PDF file and write the info to a writer
 * @param writer Writer to a text file/*  www .j a  va  2s . c  o  m*/
 * @param filename Path to the PDF file
 * @throws IOException
 */
public static void inspect(PrintWriter writer, String filename) throws IOException, SAXException {
    //        writer.println(filename);
    writer.flush();

    PdfReader reader = new PdfReader(filename);

    ContentHandler xmlhandler = new SimpleXMLWriter(writer);
    xmlhandler.startDocument();

    SimpleXMLCreator xml = new SimpleXMLCreator(xmlhandler, Annotation.namespaces, true);

    /*
            writer.println("Number of pages: "+reader.getNumberOfPages());
            Rectangle mediabox = reader.getPageSize(1);
            writer.print("Size of page 1: [");
            writer.print(mediabox.getLeft());
            writer.print(',');
            writer.print(mediabox.getBottom());
            writer.print(',');
            writer.print(mediabox.getRight());
            writer.print(',');
            writer.print(mediabox.getTop());
            writer.println("]");
            writer.print("Rotation of page 1: ");
            writer.println(reader.getPageRotation(1));
            writer.print("Page size with rotation of page 1: ");
            writer.println(reader.getPageSizeWithRotation(1));
            writer.println();
            writer.flush();
    */
    List<Annotation> annots = new LinkedList<Annotation>();
    xml.startElement("annots");

    // TODO: The following elements may be added:
    // - optionally write <f href="Document.pdf"/>
    // - optionally write <ids original="ID" modified="ID" />

    xml.startElement("m", "pages");
    for (int pageNum = 1; pageNum <= reader.getNumberOfPages(); pageNum++) {
        PdfDictionary pageDic = reader.getPageN(pageNum);

        Map<String, String> attr = new HashMap<String, String>();
        attr.put("number", "" + pageNum);
        attr.put("rotate", "" + reader.getPageRotation(pageNum));

        Rectangle mediabox = reader.getPageSize(pageNum);
        attr.put("left", "" + mediabox.getLeft());
        attr.put("bottom", "" + mediabox.getBottom());
        attr.put("right", "" + mediabox.getRight());
        attr.put("top", "" + mediabox.getTop());

        xml.contentElement("m", "page", "", attr);

        PdfArray rawannots = pageDic.getAsArray(PdfName.ANNOTS);
        if (rawannots == null || rawannots.isEmpty()) {
            // writer.println("page "+pageNum+" contains no annotations");
            continue;
        }

        // writer.println("page "+pageNum+" has "+rawannots.size()+" annotations");

        for (int i = 0; i < rawannots.size(); i++) {
            PdfObject obj = rawannots.getDirectObject(i);
            if (!obj.isDictionary())
                continue;
            Annotation a = new Annotation((PdfDictionary) obj, pageNum);
            annots.add(a);
        }

        /**
        // Now we have all highlight and similar annotations, we need
        // to find out what words are actually highlighted! PDF in fact
        // is a dump format to express documents.
        // For some hints see
        // http://stackoverflow.com/questions/4028240/extract-each-column-of-a-pdf-file
                
        // We could reuse code from LocationTextExtractionStrategy (TODO)
        // LocationTextExtractionStrategy extr = new LocationTextExtractionStrategy();
        String fulltext = PdfTextExtractor.getTextFromPage(reader,pageNum);//,extr
        writer.println(fulltext);
        */
    }
    xml.endElement();

    for (Annotation a : annots) {
        a.serializeXML(xmlhandler);
    }
    // TODO: add page information (page size and orientation)

    xml.endAll();
}

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From source file:io.konik.carriage.itext.ITextInvoiceExtractor.java

License:Open Source License

private static PdfArray getValidAf(PdfDictionary catalog) {
    if (catalog.contains(AF)) {
        PdfArray af = catalog.getAsArray(AF);
        if (!af.isEmpty() && af.getDirectObject(0).isDictionary()) {
            return af;
        }// w  w w .  j av  a 2  s  .c  o m
    }
    throw new InvoiceExtractionError("Pdf catalog does not contain Valid AF Entry");
}

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From source file:io.konik.carriage.itext.ITextInvoiceExtractor.java

License:Open Source License

private static PdfDictionary getValidFileSpec(PdfArray af) {
    if (af.isEmpty() || af.getAsDict(0) == null) {
        throw new InvoiceExtractionError("Pdf does not contain a FileSpec Entry");
    }//from  ww  w. ja va  2s  . c  o m
    return af.getAsDict(0);
}

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