at.knowcenter.wag.egov.egiz.pdf
Class TextualSignature

java.lang.Object
  at.knowcenter.wag.egov.egiz.pdf.TextualSignature

public class TextualSignature

extends Object

Contains helper function for textual signatures.

Author:

wprinz

Constructor Summary

TextualSignature()

Method Summary

static String	extractTextTextual(PdfDataSource pdfDataSource, String encoding) Extracts the document text from a given pdf.
static byte[]	normalizePDF(PdfDataSource pdfDataSource) Normalizes a given binary PDF to a version PDFbox can handle correctly.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TextualSignature

public TextualSignature()

Method Detail

extractTextTextual

public static String extractTextTextual(PdfDataSource pdfDataSource,
                                        String encoding)
                                 throws PDFDocumentException

Extracts the document text from a given pdf.

Returns:

Returns the extracted document text.

Throws:

PDFDocumentException

TextExtractionException - Forwarded exception.

normalizePDF

public static byte[] normalizePDF(PdfDataSource pdfDataSource)
                           throws IOException,
                                  com.lowagie.text.DocumentException,
                                  PDFDocumentException

Normalizes a given binary PDF to a version PDFbox can handle correctly.

PDFbox has serious problems with documents that use incremental updates or XObject forms. Therefor use this to remove incremental updates and create a streamlined document.

Note that this has nothing to do with text normalization. It just unifies the PDF documents that are fed into PDFbox for text extraction and page length determination.

Returns:

Returns the normalized pdf.

Throws:

IOException

com.lowagie.text.DocumentException

PDFDocumentException