How to use Itext api for PDF with Documentum Repository Documents

Kothari

Hello All,

Can some one provide sample code to provide password protection to PDF files which is part of Documentum repository.

using ITEXT java api, How can i use with documentum TBO code, I plan to provide password through TBO, when documents object gets created in repsitory, but unable to understand to get handle of IDFDocument for following code.

IDfDocument DCTMdocument = (IDfDocument)session.getObject(new DfId("09000006800664b5"));

Document Document_For_Protection = ?? how to provide handle for ITEXT Document class to Documentum Document object reference ????

//Document Document_For_Protection = new Document();

// here want to refer existing repository document

PdfWriter EncryptPDF= PdfWriter.getInstance(Document_For_Protection,new FileOutputStream(DCTMdocument.getObjectName().toString()));

EncryptPDF.setEncryption(UserPassword, OwnerPassword,PdfWriter. ALLOW_PRINTING, PdfWriter.STANDARD_ENCRYPTION_128);

EncryptPDF.createXmpMetadata();

Any pointers on above .....

gcampos

You must get the content, you can use IDfSysobject.getContent() method, which will return an inputstream, then you can submit the content to itext, protect the PDF, and store it back.

I did it as a plugin on Document Transformation Services, it was like:

  boolean imagem = true;  PdfReader reader = null;
  PdfStamper stamp = null;
  // put a watermark into the pdf and protects against printing without password
  try {
   reader = new PdfReader(nomeArquivoEntrada);
   int paginas = reader.getNumberOfPages();
   stamp = new PdfStamper(reader, new FileOutputStream(
    nomeArquivoSaida));   // blocks the printing issuing a password   if (this.impressao.equalsIgnoreCase("true")) {
    stamp.setEncryption(false, null, "Password123",
     PdfWriter.AllowScreenReaders | PdfWriter.AllowCopy);
   }   int i = 0;
   PdfContentByte under;   Image img = null;
   BaseFont bf = null;
   if (this.texto_marca == null) {
    this.texto_marca = new String("");
   }   if (this.imagem_marca != null && !this.imagem_marca.equals("")) {
    try {
     // can use PNG, GIF and JPEG images in the watermark, or text
     img = Image.getInstance(this.imagem_marca);
    } catch (Exception e) {
     imagem = false;
     bf = BaseFont.createFont(BaseFont.TIMES_BOLD,
      BaseFont.WINANSI, BaseFont.EMBEDDED);
    }
   }
   while (i < paginas) {
    i++;    // inserts an image or a text    if (imagem) {
     under = stamp.getUnderContent(i);
     img.setAbsolutePosition((reader.getPageSize(i).right() / 2)
      - (img.right() / 2), (reader.getPageSize(i).top() / 2)
      - (img.top() / 2));
     under.addImage(img);
    } else {
     under = stamp.getUnderContent(i);
     under.beginText();
     under.setFontAndSize(bf,
      (reader.getPageSize(i).right() * 0.09f));
     under.setColorFill(Color.LIGHT_GRAY);     under.showTextAligned(PdfContentByte.ALIGN_CENTER,
      this.texto_marca, reader.getPageSize(i).right() / 1.8f,
      reader.getPageSize(i).top() / 2.2f, 45);
     under.endText();
    }
   }   bf = null;
   img = null;
  } catch (IOException ioe) {
   this.logger.error("Error Generating PDF Watermark", ioe);
  } catch (DocumentException de) {
   this.logger.error("Error Generating PDF Watermark", de);
  } finally {
   if (stamp != null)
    try {
     stamp.close();
    } catch (Exception e) {
     e.printStackTrace();
    }
   if (reader != null)
    reader.close();
  }

Hope it helps.

Regards,

Gustavo