Example usage for com.itextpdf.text.pdf PdfObject toString

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfObject toString.

Prototype

public String toString() 

Source Link

Document

Returns the String-representation of this PdfObject.

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//  w w  w . j  a  v  a 2 s.  co  m
 * @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:org.gmdev.pdftrick.engine.CheckFiles.java

License:Open Source License

/**
 * Check the number of images contained in the file's selection, if == 0 return false.
 * @param filesVett/*from w w w  .  j ava2  s  . c om*/
 * @param messages
 * @return TRUE if the there is at least one image in the PDF files selection.
 */
private boolean checkNumberImages(ArrayList<File> filesVett, Properties messages) {
    boolean checkNumImg = false;
    Iterator<File> ite = filesVett.iterator();
    while (ite.hasNext()) {
        File item = ite.next();
        PdfReader reader = null;
        try {
            if (namePwd.containsKey(item.getName())) {
                reader = new PdfReader(item.getPath(), namePwd.get(item.getName()).getBytes());
            } else {
                reader = new PdfReader(item.getPath());
            }
            for (int i = 0; i < reader.getXrefSize(); i++) {
                PdfObject pdfobj = reader.getPdfObject(i);
                if (pdfobj == null || !pdfobj.isStream()) {
                    continue;
                }
                PdfStream stream = (PdfStream) pdfobj;
                PdfObject pdfsubtype = stream.get(PdfName.SUBTYPE);
                if (pdfsubtype != null && pdfsubtype.toString().equals(PdfName.IMAGE.toString())) {
                    checkNumImg = true;
                    break;
                }
            }
            if (checkNumImg) {
                break;
            }
        } catch (IOException e) {
            logger.error("Exception", e);
            PdfTrickMessages.append("ERROR", Consts.SENDLOG_MSG);
        }
    }
    if (!checkNumImg) {
        PdfTrickMessages.append("WARNING", messages.getProperty("tmsg_21"));
    }
    return checkNumImg;
}

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From source file:pdfextract.ExtractInfo.java

public void extractImagesInfo() {
    try {//from w  ww  .  ja v a2  s  . co m
        PdfReader chartReader = new PdfReader("vv.pdf");
        for (int i = 0; i < chartReader.getXrefSize(); i++) {
            PdfObject pdfobj = chartReader.getPdfObject(i);
            if (pdfobj != null && pdfobj.isStream()) {
                PdfStream stream = (PdfStream) pdfobj;
                PdfObject pdfsubtype = stream.get(PdfName.SUBTYPE);
                //System.out.println("Stream subType: " + pdfsubtype); 
                if (pdfsubtype != null && pdfsubtype.toString().equals(PdfName.IMAGE.toString())) {
                    byte[] image = PdfReader.getStreamBytesRaw((PRStream) stream);
                    Image imageObject = Image.getInstance(image);
                    System.out.println("Resolution" + imageObject.getDpiX());
                    System.out.println("Height" + imageObject.getHeight());
                    System.out.println("Width" + imageObject.getWidth());

                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

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From source file:pdfextract.ExtractInfo.java

public void imageNew() throws IOException {
    PdfReader reader;//  ww w .  j  a va  2  s .  co m

    File file = new File("vv.pdf");
    reader = new PdfReader(file.getAbsolutePath());
    for (int i = 0; i < reader.getXrefSize(); i++) {
        PdfObject pdfobj = reader.getPdfObject(i);
        if (pdfobj == null || !pdfobj.isStream()) {
            continue;
        }
        PdfStream stream = (PdfStream) pdfobj;
        PdfObject pdfsubtype = stream.get(PdfName.SUBTYPE);
        if (pdfsubtype != null && pdfsubtype.toString().equals(PdfName.IMAGE.toString())) {
            byte[] img = PdfReader.getStreamBytesRaw((PRStream) stream);
            FileOutputStream out = new FileOutputStream(
                    new File(file.getParentFile(), String.format("%1$05d", i) + ".jpg"));
            out.write(img);
            out.flush();
            out.close();
        }
    }
}

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