/** @see com.lowagie.tools.AbstractTool#execute() */
public static void execute(String srcvalue, String destvalue, String rotvalue) {
try {
if (StringUtils.isBlank(srcvalue)) {
throw new InstantiationException("You need to choose a sourcefile");
}
File src = new File(srcvalue);
if (StringUtils.isBlank(destvalue)) {
throw new InstantiationException("You need to choose a destination file");
}
File dest = new File(destvalue);
if (StringUtils.isBlank(rotvalue)) {
throw new InstantiationException("You need to choose a rotation");
}
int rotation = Integer.parseInt(rotvalue);
// we create a reader for a certain document
PdfReader reader = new PdfReader(src.getAbsolutePath());
// we retrieve the total number of pages and the page size
int total = reader.getNumberOfPages();
System.out.println("There are " + total + " pages in the original file.");
PdfDictionary pageDict;
int currentRotation;
for (int p = 1; p <= total; p++) {
currentRotation = reader.getPageRotation(p);
pageDict = reader.getPageN(p);
pageDict.put(PdfName.ROTATE, new PdfNumber(currentRotation + rotation));
}
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
stamper.close();
} catch (Exception e) {
e.printStackTrace();
}
}
