Example usage for com.itextpdf.text.pdf PdfStream flateCompress

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfStream flateCompress.

Prototype

public void flateCompress() 

Source Link

Document

Compresses the stream.

Usage

From source file:be.roots.taconic.pricingguide.util.iTextUtil.java

License:Open Source License

public static byte[] embedFont(byte[] pdf, String fontFileName, String fontName)
        throws IOException, DocumentException {

    try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
        // the font file
        RandomAccessFile raf = new RandomAccessFile(fontFileName, "r");
        byte fontfile[] = new byte[(int) raf.length()];
        raf.readFully(fontfile);/*from   ww w .  jav  a  2 s  . com*/
        raf.close();
        // create a new stream for the font file
        PdfStream stream = new PdfStream(fontfile);
        stream.flateCompress();
        stream.put(PdfName.LENGTH1, new PdfNumber(fontfile.length));
        // create a reader object
        PdfReader reader = new PdfReader(pdf);
        int n = reader.getXrefSize();
        PdfObject object;
        PdfDictionary font;
        PdfStamper stamper = new PdfStamper(reader, baos);
        PdfName fontname = new PdfName(fontName);
        for (int i = 0; i < n; i++) {
            object = reader.getPdfObject(i);
            if (object == null || !object.isDictionary())
                continue;
            font = (PdfDictionary) object;
            if (PdfName.FONTDESCRIPTOR.equals(font.get(PdfName.TYPE1))
                    && fontname.equals(font.get(PdfName.FONTNAME))) {
                PdfIndirectObject objref = stamper.getWriter().addToBody(stream);
                font.put(PdfName.FONTFILE2, objref.getIndirectReference());
            }
        }
        stamper.close();
        reader.close();
        return baos.toByteArray();
    }
}

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