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();
}