Example usage for com.itextpdf.text.pdf PdfReader setPageContent

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfReader setPageContent.

Prototype

public void setPageContent(final int pageNum, final byte content[]) 

Source Link

Document

Sets the contents of the page.

Usage

From source file:org.h819.commons.file.MyPDFUtils.java

/**
 * ? pdf ??//from  ww w .j a  v a  2 s . com
 *
 * @param srcPdfFile  the original PDF
 * @param descPdfFile the resulting PDF
 * @throws java.io.IOException
 * @throws DocumentException
 */
public static void compressPdf(File srcPdfFile, File descPdfFile) throws IOException, DocumentException {

    if (srcPdfFile == null || !srcPdfFile.exists())
        throw new IOException("src pdf file '" + srcPdfFile + "' does not exsit.");

    PdfReader reader = getPdfReader(srcPdfFile);
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(descPdfFile.getAbsoluteFile()),
            PdfWriter.VERSION_1_7);

    stamper.getWriter().setCompressionLevel(9);
    int total = reader.getNumberOfPages() + 1;
    for (int i = 1; i < total; i++) {
        reader.setPageContent(i, reader.getPageContent(i));
    }
    stamper.setFullCompression();
    stamper.close();
    reader.close();
}

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From source file:org.h819.commons.file.MyPDFUtils.java

/**
 * ?pdf//from   ww w .ja va2  s . c om
 *
 * @param srcPdfFile  the original PDF
 * @param descPdfFile the resulting PDF
 * @throws java.io.IOException
 * @throws DocumentException
 */
public static void decompressPdf(File srcPdfFile, File descPdfFile) throws IOException, DocumentException {

    if (srcPdfFile == null || !srcPdfFile.exists())
        throw new IOException("src pdf file '" + srcPdfFile + "' does not exsit.");

    PdfReader reader = getPdfReader(srcPdfFile);
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(descPdfFile.getAbsoluteFile()));
    stamper.getWriter().setCompressionLevel(PdfStream.NO_COMPRESSION);
    int total = reader.getNumberOfPages() + 1;
    for (int i = 1; i < total; i++) {
        reader.setPageContent(i, reader.getPageContent(i));
    }
    stamper.close();
    reader.close();

}

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From source file:org.sejda.impl.itext5.component.PdfStamperHandler.java

License:Open Source License

/**
 * Enables compression if compress is true
 * /*from   w  w w .j a  va2  s  .  c  o  m*/
 * @param compress
 * @throws TaskException
 */
public void setCompression(boolean compress, PdfReader reader) throws TaskException {
    if (compress) {
        try {
            stamper.getWriter().setCompressionLevel(PdfStream.BEST_COMPRESSION);
            int total = reader.getNumberOfPages() + 1;
            for (int i = 1; i < total; i++) {
                reader.setPageContent(i, reader.getPageContent(i));
            }
            stamper.setFullCompression();
        } catch (DocumentException de) {
            throw new TaskException("Unable to set compression on stamper", de);
        } catch (IOException e) {
            throw new TaskException("Unable to set compression on stamper", e);
        }
    }
}

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