Examples with PRIndirectReference com.lowagie.text.pdf.PRIndirectReference used on opensource projects

Example 1 with PRIndirectReference

use of com.lowagie.text.pdf.PRIndirectReference in project OpenPDF by LibrePDF.

the class RemoveLaunchApplication method execute.

/**
 * @see com.lowagie.toolbox.AbstractTool#execute()
 */
public void execute() {
    try {
        if (getValue("srcfile") == null) {
            throw new InstantiationException("You need to choose a sourcefile");
        }
        File src = (File) getValue("srcfile");
        if (getValue("destfile") == null) {
            throw new InstantiationException("You need to choose a destination file");
        }
        File dest = (File) getValue("destfile");
        // we create a reader for a certain document
        PdfReader reader = new PdfReader(src.getAbsolutePath());
        PdfObject o;
        PdfDictionary d;
        PdfDictionary l;
        PdfName n;
        for (int i = 1; i < reader.getXrefSize(); i++) {
            o = reader.getPdfObject(i);
            if (o instanceof PdfDictionary) {
                d = (PdfDictionary) o;
                o = d.get(PdfName.A);
                if (o == null)
                    continue;
                if (o instanceof PdfDictionary) {
                    l = (PdfDictionary) o;
                } else {
                    PRIndirectReference r = (PRIndirectReference) o;
                    l = (PdfDictionary) reader.getPdfObject(r.getNumber());
                }
                n = (PdfName) l.get(PdfName.S);
                if (PdfName.LAUNCH.equals(n)) {
                    if (l.get(PdfName.F) != null) {
                        System.out.println("Removed: " + l.get(PdfName.F));
                        l.remove(PdfName.F);
                    }
                    if (l.get(PdfName.WIN) != null) {
                        System.out.println("Removed: " + l.get(PdfName.WIN));
                        l.remove(PdfName.WIN);
                    }
                    l.put(PdfName.S, PdfName.JAVASCRIPT);
                    l.put(PdfName.JS, new PdfString("app.alert('Launch Application Action removed by iText');\r"));
                }
            }
        }
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
        stamper.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example 2 with PRIndirectReference

use of com.lowagie.text.pdf.PRIndirectReference in project OpenPDF by LibrePDF.

the class PdfTextExtractor method getContentBytesFromContentObject.

/**
 * Gets the content bytes from a content object, which may be a reference a
 * stream or an array.
 *
 * @param contentObject the object to read bytes from
 * @return the content bytes
 * @throws IOException
 */
private byte[] getContentBytesFromContentObject(PdfObject contentObject) throws IOException {
    final byte[] result;
    switch(contentObject.type()) {
        case PdfObject.INDIRECT:
            PRIndirectReference ref = (PRIndirectReference) contentObject;
            PdfObject directObject = PdfReader.getPdfObject(ref);
            result = getContentBytesFromContentObject(directObject);
            break;
        case PdfObject.STREAM:
            PRStream stream = (PRStream) PdfReader.getPdfObject(contentObject);
            result = PdfReader.getStreamBytes(stream);
            break;
        case PdfObject.ARRAY:
            // Stitch together all content before calling processContent(),
            // because
            // processContent() resets state.
            ByteArrayOutputStream allBytes = new ByteArrayOutputStream();
            PdfArray contentArray = (PdfArray) contentObject;
            for (PdfObject pdfObject : contentArray.getElements()) {
                allBytes.write(getContentBytesFromContentObject(pdfObject));
            }
            result = allBytes.toByteArray();
            break;
        default:
            throw new IllegalStateException("Unable to handle Content of type " + contentObject.getClass());
    }
    return result;
}

Example 3 with PRIndirectReference

use of com.lowagie.text.pdf.PRIndirectReference in project OpenPDF by LibrePDF.

the class Image method getInstance.

/**
 * Reuses an existing image.
 * @param ref the reference to the image dictionary
 * @throws BadElementException on error
 * @return the image
 */
public static Image getInstance(PRIndirectReference ref) throws BadElementException {
    PdfDictionary dic = (PdfDictionary) PdfReader.getPdfObjectRelease(ref);
    int width = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
    int height = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
    Image imask = null;
    PdfObject obj = dic.get(PdfName.SMASK);
    if (obj != null && obj.isIndirect()) {
        imask = getInstance((PRIndirectReference) obj);
    } else {
        obj = dic.get(PdfName.MASK);
        if (obj != null && obj.isIndirect()) {
            PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
            if (obj2 instanceof PdfDictionary)
                imask = getInstance((PRIndirectReference) obj);
        }
    }
    Image img = new ImgRaw(width, height, 1, 1, null);
    img.imageMask = imask;
    img.directReference = ref;
    return img;
}

Example 4 with PRIndirectReference

use of com.lowagie.text.pdf.PRIndirectReference in project itext2 by albfernandez.

the class Image method getInstance.

/**
 * Reuses an existing image.
 * @param ref the reference to the image dictionary
 * @throws BadElementException on error
 * @return the image
 */
public static Image getInstance(PRIndirectReference ref) throws BadElementException {
    PdfDictionary dic = (PdfDictionary) PdfReader.getPdfObjectRelease(ref);
    int width = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
    int height = ((PdfNumber) PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
    Image imask = null;
    PdfObject obj = dic.get(PdfName.SMASK);
    if (obj != null && obj.isIndirect()) {
        imask = getInstance((PRIndirectReference) obj);
    } else {
        obj = dic.get(PdfName.MASK);
        if (obj != null && obj.isIndirect()) {
            PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
            if (obj2 instanceof PdfDictionary)
                imask = getInstance((PRIndirectReference) obj);
        }
    }
    Image img = new ImgRaw(width, height, 1, 1, null);
    img.imageMask = imask;
    img.directReference = ref;
    return img;
}

Example 5 with PRIndirectReference

use of com.lowagie.text.pdf.PRIndirectReference in project itext2 by albfernandez.

the class PdfContentStreamProcessorTest method readContentBytes.

private byte[] readContentBytes(final PdfObject contentObject) throws IOException {
    final byte[] result;
    switch(contentObject.type()) {
        case PdfObject.INDIRECT:
            final PRIndirectReference ref = (PRIndirectReference) contentObject;
            final PdfObject directObject = PdfReader.getPdfObject(ref);
            result = readContentBytes(directObject);
            break;
        case PdfObject.STREAM:
            final PRStream stream = (PRStream) PdfReader.getPdfObject(contentObject);
            result = PdfReader.getStreamBytes(stream);
            break;
        case PdfObject.ARRAY:
            // Stitch together all content before calling processContent(),
            // because
            // processContent() resets state.
            final ByteArrayOutputStream allBytes = new ByteArrayOutputStream();
            final PdfArray contentArray = (PdfArray) contentObject;
            final ListIterator<?> iter = contentArray.listIterator();
            while (iter.hasNext()) {
                final PdfObject element = (PdfObject) iter.next();
                allBytes.write(readContentBytes(element));
            }
            result = allBytes.toByteArray();
            break;
        default:
            final String msg = "Unable to handle Content of type " + contentObject.getClass();
            throw new IllegalStateException(msg);
    }
    return result;
}