/**
* Constructor sets the input and output file and convert the pdf, docx and doc files to text .
*
* @param infile,outfile
* @return
*/
public TextConvertor(String infile, String outfile) {
try {
File input = new File(infile); // The file from where you would like to extract
FileInputStream fis = new FileInputStream(input.getAbsolutePath());
int x = fis.read();
int y = fis.read();
fis = new FileInputStream(input.getAbsolutePath());
if (x == 37 && y == 80) {
filetype = "pdf";
pd = PDDocument.load(input);
PDF2Text(outfile);
} else if (x == 80 && y == 75) {
filetype = "docx";
dx = new XWPFDocument(fis);
DOCX2Text(outfile);
} else if (x == 208 && y == 207) {
filetype = "doc";
dc = new HWPFDocument(fis);
DOC2Text(outfile);
}
} catch (Exception e) {
e.printStackTrace();
}
}
private static void extract(InputStream in) throws Exception {
PDDocument document = null;
try {
PDFParser parser = new PDFParser(in);
parser.parse();
document = parser.getPDDocument();
if (document.isEncrypted()) {
System.err.println("Document is Encrypted!");
}
PDDocumentCatalog cat = document.getDocumentCatalog();
PDMetadata metadata = cat.getMetadata();
if (metadata != null) {
// System.out.println(metadata.getStream().getStreamTokens());
// Levantamos la MetaData
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(metadata.createInputStream());
// Buscamos el tag de SEmployee y el Element -> CUIT
NodeList nList = doc.getElementsByTagName("foaf:SEmployee");
Element elem = (Element) nList.item(0);
String cuit = elem.getElementsByTagName("foaf:cuit").item(0).getTextContent();
System.out.println(cuit);
System.out.println("---");
System.out.println(metadata.getInputStreamAsString());
}
} catch (Exception err) {
throw err;
} finally {
if (document != null)
try {
document.close();
} catch (Throwable err2) {
}
}
}
/**
* save the converted text (without any processing) to the given file.
*
* @param filename
* @return
*/
public void PDF2Text(String filename) {
try {
File output =
new File(filename); // The text file where you are going to store the extracted data
stripper = new PDFTextStripper();
wr = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(output)));
stripper.writeText(pd, wr);
if (pd != null) {
pd.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void PDF2TextPreProssesd(String filename) {
try {
stripper = new PDFTextStripper();
stripper.setParagraphStart("&*&");
stripper.setLineSeparator("#%#");
stripper.setPageSeparator("#%#");
String fulltxt = stripper.getText(pd);
String paras[] = fulltxt.split("&*&");
File file = new File(filename);
try {
BufferedWriter out = new BufferedWriter(new FileWriter(file));
int i = 0;
while (i < paras.length) {
if (paras[i].length() > 200) {
String para = paras[i].replace("#%#", " ");
out.write(para + "\r\n");
}
i++;
}
out.close();
} catch (IOException ex) {
ex.printStackTrace();
}
if (pd != null) {
pd.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}