Example usage for com.itextpdf.text.pdf PdfDictionary getAsIndirectObject

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfDictionary getAsIndirectObject.

Prototype

public PdfIndirectReference getAsIndirectObject(final PdfName key) 

Source Link

Document

Returns a PdfObject as a PdfIndirectReference.

Usage

From source file:cz.muni.pdfjbim.PdfImageExtractor.java

License:Apache License

/**
 * Extracts JBIG2Images from Input stream even if they are stored together with global dictionary in separate PDF object
 * doesn't work yet, its in development stage
 * @param is//from   w w w .j ava 2 s.  c om
 * @throws PdfRecompressionException 
 * @deprecated 
 */
public void extractJbig2Images(InputStream is) throws PdfRecompressionException {
    if (is == null) {
        throw new IllegalArgumentException("InputStream not given");
    }

    PdfReader pdfReader = null;
    try {
        pdfReader = new PdfReader(is);

        for (int i = 0; i <= pdfReader.getNumberOfPages(); i++) {
            PdfDictionary d = pdfReader.getPageN(i);
            PdfIndirectReference ir = d.getAsIndirectObject(PdfName.CONTENTS);
            PdfObject o = pdfReader.getPdfObject(ir.getNumber());
            PdfStream stream = (PdfStream) o;
            PdfObject pdfsubtype = stream.get(PdfName.SUBTYPE);
            if (pdfsubtype != null && pdfsubtype.toString().equals(PdfName.IMAGE.toString())) {
                byte[] img = PdfReader.getStreamBytesRaw((PRStream) stream);
                OutputStream out = new FileOutputStream(
                        new File("pdfRecompressor", String.format("%1$05d", i) + ".jpg"));
                out.write(img);
                out.flush();
                out.close();
            }

        }

    } catch (IOException ex) {
        log.error("IOException caught while trying to extract jbig2 images from PDF", ex);
        throw new PdfRecompressionException("IOException caught while trying to extract jbig2 images from PDF",
                ex);
    } finally {
        if (pdfReader != null) {
            pdfReader.close();
        }
    }

}

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From source file:de.rub.dez6a3.jpdfsigner.control.JPodPDFViewer.java

License:Open Source License

@Override
public ArrayList getAttachments() throws IOException {
    ArrayList files = new ArrayList();
    PdfReader reader = new PdfReader(conf.getPDFFile());
    PdfDictionary root = reader.getCatalog();
    PdfDictionary documentnames = root.getAsDict(PdfName.NAMES);
    PdfDictionary embeddedfiles = documentnames.getAsDict(PdfName.EMBEDDEDFILES);
    PdfArray filespecs = embeddedfiles.getAsArray(PdfName.NAMES);
    PdfDictionary filespec;/*from  w w w. j a v a 2s .c o m*/
    PdfDictionary refs;
    for (int i = 0; i < filespecs.size();) {
        filespecs.getAsName(i++);
        filespec = filespecs.getAsDict(i++);
        refs = filespec.getAsDict(PdfName.EF);
        Iterator it = refs.getKeys().iterator();
        while (it.hasNext()) {
            PdfName key = (PdfName) it.next();
            if (key.toString().equals("/F")) {

                String filename = "-";
                String desc = "-";
                int size = -1;
                String moddate = "-";
                String compsize = "-";
                PdfObject pdfobj = null;

                try {
                    filename = filespec.getAsString(key).toString();
                } catch (Exception e) {
                    log.warn("Cannot load attachment-name - " + e.getMessage());
                }
                try {
                    desc = filespec.getAsString(PdfName.DESC).toString();
                } catch (Exception e) {
                    log.warn("Cannot load attachment-description - " + e.getMessage());
                }
                byte[] attBytes = null;
                try {
                    PRStream stream = (PRStream) PdfReader.getPdfObject(refs.getAsIndirectObject(key));
                    attBytes = PdfReader.getStreamBytes(stream);
                    size = attBytes.length;
                } catch (Exception e) {
                    log.warn("Cannot load attachment-size - " + e.getMessage());
                }
                try {
                    pdfobj = PdfReader.getPdfObject(refs.getAsIndirectObject(key));
                } catch (Exception e) {
                    log.warn("Cannot load attachment-pdfobject - " + e.getMessage());
                }

                Hashtable fileData = new Hashtable();
                fileData.put(ATTACHMENT_FILENAME_STRING, filename); //filename
                fileData.put(ATTACHMENT_DESCRIPTION_STRING, desc); //Description
                fileData.put(ATTACHMENT_SIZE_INT, size); //size
                fileData.put(ATTACHMENT_BYTES_ARR, attBytes); //bytes
                files.add(fileData);
            }
        }
    }
    return files;
}

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From source file:mkl.testarea.itext5.pdfcleanup.StrictPdfCleanUpProcessor.java

License:Open Source License

private String getParentIndRefStr(PdfDictionary dict) {
    return dict.getAsIndirectObject(PdfName.PARENT).toString();
}

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