Example usage for com.lowagie.text.pdf PdfException PdfException

Introduction

In this page you can find the example usage for com.lowagie.text.pdf PdfException PdfException.

Prototype

PdfException(String message) 

Source Link

Document

Constructs a PdfException with a message.

Usage

From source file:com.jk.framework.pdf.PDFMergeUtil.java

License:Apache License

/**
 * Concat PD fs./*  w  w w  .  j  ava  2  s  . co  m*/
 *
 * @param pdfs
 *            the pdfs
 * @param outputStream
 *            the output stream
 * @param paginate
 *            the paginate
 * @throws PdfException
 *             the pdf exception
 */
// ////////////////////////////////////////////////////////////////
public static void concatPDFs(final List<InputStream> pdfs, final OutputStream outputStream,
        final boolean paginate) throws PdfException {
    final Document document = new Document();
    try {
        final List<PdfReader> readers = new ArrayList<PdfReader>();
        int totalPages = 0;
        final Iterator<InputStream> iteratorPDFs = pdfs.iterator();

        // Create Readers for the pdfs.
        while (iteratorPDFs.hasNext()) {
            final InputStream pdf = iteratorPDFs.next();
            final PdfReader pdfReader = new PdfReader(pdf);
            readers.add(pdfReader);
            totalPages += pdfReader.getNumberOfPages();
        }

        // Create a writer for the outputstream
        final PdfWriter writer = PdfWriter.getInstance(document, outputStream);

        document.open();

        // BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA,
        // BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
        final PdfContentByte cb = writer.getDirectContent(); // Holds the
        // PDF
        // data

        PdfImportedPage page;
        int currentPageNumber = 0;
        int pageOfCurrentReaderPDF = 0;
        final Iterator<PdfReader> iteratorPDFReader = readers.iterator();

        // Loop through the PDF files and add to the output.
        while (iteratorPDFReader.hasNext()) {
            final PdfReader pdfReader = iteratorPDFReader.next();

            // Create a new page in the target for each source page.
            while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
                document.newPage();
                pageOfCurrentReaderPDF++;
                currentPageNumber++;
                page = writer.getImportedPage(pdfReader, pageOfCurrentReaderPDF);
                cb.addTemplate(page, 0, 0);

                // Code for pagination.
                if (paginate) {
                    cb.beginText();
                    // cb.setFontAndSize(bf, 9);
                    cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
                            "" + currentPageNumber + " of " + totalPages, 520, 5, 0);
                    cb.endText();
                }
            }
            pageOfCurrentReaderPDF = 0;
        }

        outputStream.flush();
        document.close();
        outputStream.close();
    } catch (final Exception e) {
        throw new PdfException(e);
    } finally {
        if (document.isOpen()) {
            document.close();
        }
        try {
            if (outputStream != null) {
                outputStream.close();
            }
        } catch (final IOException ioe) {
            ioe.printStackTrace();
        }
    }
}

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