复制代码 代码如下:

public byte[] autoPrintPdf(byte[] pdf_byte) {

ByteArrayOutputStream bos=null;

try {

PdfReader reader = new PdfReader(pdf_byte);

bos = new ByteArrayOutputStream();

PdfStamper ps = new PdfStamper(reader, bos);

StringBuffer script = new StringBuffer();

script.append("this.print({bUI: false,bSilent: true,bShrinkToFit: false});").append("rnthis.closeDoc();");

ps.addJavaScript(script.toString());

//ps.addJavaScript("this.print(true);");

ps.setFormFlattening(true);

ps.close();

} catch (Exception e) {

e.printStackTrace();

}

return bos.toByteArray();

}