/**
* Reads a PDF file for retrieving its metadata.
*
* @param file File
*/
public void createTextFromPDF(File file) {
if (file.exists()) {
int page = 1;
PdfReader reader = null;
try {
reader = new PdfReader(new RandomAccessFileOrArray(file.getAbsolutePath()), null);
HashMap<String, String> pdfinfo = reader.getInfo();
StringBuffer sb = new StringBuffer();
sb.append("<html>=== Document Information ===<p>");
sb.append(
reader.getCropBox(page).getHeight() + "*" + reader.getCropBox(page).getWidth() + "<p>");
sb.append("PDF Version: " + reader.getPdfVersion() + "<p>");
sb.append("Number of pages: " + reader.getNumberOfPages() + "<p>");
sb.append("Number of PDF objects: " + reader.getXrefSize() + "<p>");
sb.append("File length: " + reader.getFileLength() + "<p>");
sb.append("Encrypted= " + reader.isEncrypted() + "<p>");
if (pdfinfo.get("Title") != null) {
sb.append("Title= " + pdfinfo.get("Title") + "<p>");
}
if (pdfinfo.get("Author") != null) {
sb.append("Author= " + pdfinfo.get("Author") + "<p>");
}
if (pdfinfo.get("Subject") != null) {
sb.append("Subject= " + pdfinfo.get("Subject") + "<p>");
}
if (pdfinfo.get("Producer") != null) {
sb.append("Producer= " + pdfinfo.get("Producer") + "<p>");
}
if (pdfinfo.get("ModDate") != null) {
sb.append("ModDate= " + PdfDate.decode(pdfinfo.get("ModDate")).getTime() + "<p>");
}
if (pdfinfo.get("CreationDate") != null) {
sb.append(
"CreationDate= " + PdfDate.decode(pdfinfo.get("CreationDate")).getTime() + "<p>");
}
sb.append("</html>");
label.setText(sb.toString());
} catch (IOException ex) {
label.setText("");
}
}
}
