rotion of pdf-documents now is handled correctly

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@53 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 84 insertions, 18 deletions

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java
index 140a6c3..1a3b56b 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java
@@ -23,12 +23,15 @@ import java.io.File;
 import java.io.IOException;

 import java.io.InputStream;

 

+import org.apache.log4j.Logger;

 import org.pdfbox.pdfparser.PDFParser;

 import org.pdfbox.pdmodel.PDDocument;

 import org.pdfbox.util.PDFTextStripper;

 

+import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger;

 import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;

 import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;

+import at.knowcenter.wag.egov.egiz.framework.signators.TextualSignator_1_0_0;

 

 import com.lowagie.text.Document;

 import com.lowagie.text.DocumentException;

@@ -45,7 +48,10 @@ import com.lowagie.text.pdf.PdfWriter;
  */

 public class TextualSignature

 {

-

+  /**

+  * The logger definition.

+  */

+  private static final Logger logger_ = ConfigLogger.getLogger(TextualSignature.class);

   /**

    * Extracts the document text from a given pdf.

    * 

@@ -59,6 +65,7 @@ public class TextualSignature
   {

     try

     {

+      int first_page_rotation = 0;

       // logger_.debug("====================================================");

       // logger_.debug("extractText:");

 

@@ -68,28 +75,91 @@ public class TextualSignature
       // when being signed, but of course without adding content.

 

 

-      byte[] bytes = normalizePDF(pdf_stream);

-

-      ByteArrayInputStream bais = new ByteArrayInputStream(bytes);

-

+     // byte[] bytes = normalizePDF(pdf_stream);

+    	//iText  

+    	

+        PdfReader reader = new PdfReader(pdf_stream);

+

+        ByteArrayOutputStream baos = new ByteArrayOutputStream();

+

+        // For some reason the Reader -> ImportPage -> Writer mechanism produces

+        // problems en mass.

+        // The text extractor may not be able to extract proper text from

+        // documents

+        // created with

+        // this method (although it works when a Table is appended)... very

+        // fragile.

+

+        Document document = new Document();

+

+        PdfWriter writer = PdfWriter.getInstance(document, baos);

+        document.open();

+

+        PdfContentByte cb = writer.getDirectContent();

+        for (int page_num = 1; page_num <= reader.getNumberOfPages(); page_num++)

+        {

+          //Rectangle new_size = reader.getPageSize(page_num);

+          //logger_.info("PageSize with no rotaion: Pagenr:"+page_num+" Size: "+new_size);

+          //document.setPageSize(new_size);

+          Rectangle new_size_withrot =reader.getPageSizeWithRotation(page_num);

+          if (page_num == 1)

+          {

+        	//setFirstPageRotation(new_size_withrot.getRotation());

+        	first_page_rotation = new_size_withrot.getRotation();

+        	//logger_.info("iText first_page_rotation="+new_size_withrot.getRotation());

+          }

+          //logger_.info("iText set PageSize of page:"+page_num+" to: "+new_size_withrot); 

+          //document.setPageSize(new_size);

+          document.setPageSize(new_size_withrot);

+          document.newPage();

+

+          PdfImportedPage page = writer.getImportedPage(reader, page_num);

+          // note that this will add an xobject form to the doc.

+          // the xobject form contains the content of the page.

+          cb.addTemplate(page, 0, 0);

+

+          // wprinz: debugging

+          // cb.beginText();

+          // cb.setFontAndSize(BaseFont.createFont(BaseFont.HELVETICA,

+          // BaseFont.CP1252, BaseFont.NOT_EMBEDDED), 14);

+          // cb.showText("page " + page_num);

+          // cb.endText();

+          // wprinz: end debugging

+        }

+

+        document.close();

+

+        // for (int i = 1; i <= reader.getNumberOfPages(); i++)

+        // {

+        // Rectangle rect = reader.getBoxSize(i, "bleed");

+        // logger_.debug("rect[" + i + "] = " + rect);

+        // }

+

+        baos.close();

+        byte[] normalizedPDF = baos.toByteArray();     

+

+      ByteArrayInputStream bais = new ByteArrayInputStream(normalizedPDF);

+      //PDFBox-parser

       PDFParser parser = new PDFParser(bais);

       File temporary_dir = SettingsReader.getTemporaryDirectory();

+      //logger_.info("temporary_dir="+temporary_dir.getAbsolutePath());

       parser.setTempDirectory(temporary_dir);

       parser.parse();

-

+      

       PDDocument doc = parser.getPDDocument();

-

+      //System.out.println("pdfBox.getNumberOfPages()"+doc.getNumberOfPages());

+      

       PDFTextStripper stripper = new PDFTextStripper();

       stripper.setSortByPosition(false);

+      stripper.setGetFirstPageRotationFromThis(true);

+      stripper.setFirstPageRotation(first_page_rotation);

+      

       // stripper.setStartPage(4);

       // stripper.setEndPage(4);

       String text = stripper.getText(doc);

 

       doc.close();

-

-      // logger_.debug("text.length = " + text.length());

-      // logger_.debug("====================================================");

-

+      //logger_.debug("TextualSignator extractTextTextual="+text);

       return text;

 

     }

@@ -122,10 +192,9 @@ public class TextualSignature
    */

   public static byte[] normalizePDF(InputStream input_pdf) throws IOException, DocumentException

   {

+	//iText  

     PdfReader reader = new PdfReader(input_pdf);

-

     ByteArrayOutputStream baos = new ByteArrayOutputStream();

-

     // For some reason the Reader -> ImportPage -> Writer mechanism produces

     // problems en mass.

     // The text extractor may not be able to extract proper text from

@@ -142,12 +211,10 @@ public class TextualSignature
     PdfContentByte cb = writer.getDirectContent();

     for (int page_num = 1; page_num <= reader.getNumberOfPages(); page_num++)

     {

-      Rectangle new_size = reader.getPageSize(page_num);

-      document.setPageSize(new_size);

+      Rectangle new_size_withrot =reader.getPageSizeWithRotation(page_num);

+      document.setPageSize(new_size_withrot);

       document.newPage();

-

       PdfImportedPage page = writer.getImportedPage(reader, page_num);

-

       // note that this will add an xobject form to the doc.

       // the xobject form contains the content of the page.

       cb.addTemplate(page, 0, 0);

@@ -171,7 +238,6 @@ public class TextualSignature
 

     baos.close();

     byte[] normalizedPDF = baos.toByteArray();

-

     return normalizedPDF;

   }

 }