/**
* Rewrites the contents of the PDF page being transformed with those of the output list, if at
* least one change has been indicated.
*
* @param pdfPage A PDF page (belonging to the PDF document).
* @throws IOException if any processing error occurs.
*/
protected synchronized void writeResult(PdfPage pdfPage) throws IOException {
if (atLeastOneChange) {
logger.debug3("Writing result to PDF page");
PDStream resultStream = pdfPage.getPdfDocument().makePdStream();
OutputStream outputStream = resultStream.createOutputStream();
ContentStreamWriter tokenWriter = new ContentStreamWriter(outputStream);
tokenWriter.writeTokens(getOutputList());
pdfPage.setContents(resultStream);
} else {
logger.debug3("No result to write to PDF page");
}
}
