Hi Kabir,

Please:
 - reply to the thread you created, instead of creating a new thread
 - do not double post, it's considered very rude
 - indicate a better subject line the next time you post to a list
(not this time, since you are likely to create yet another thread if
you do so)
 - subscribe to the list if you haven't already. It looks like you
didn't get the answer already posted to your previous question
 - clean up the code you quote, removing useless comments, making it
running standalone, providing the original PDF file
 - provide a stack trace, indicating the line throwing the exception

Cheers,
alexis

On 5 October 2010 19:40, Humayan Kabir <humayan.ka...@tinyprints.com> wrote:
> Hi ,
>
>
>
> I am reading PDF documents with layers. The PDF I am talking about is
> created with adobe illustrator. All I want to do is read the layers from the
>
> PDF documents and switch the layers on/ off time to time. I know there is a
> function called getPdfLayers() layers which suppose to return a map but
>
>
>
> is not working. I tried many other ways to work it out but always got  an
> error like “Exception in thread "main" java.lang.ClassCastException:
>
>
>
> com.itextpdf.text.pdf.PRIndirectReference cannot be cast to
> com.itextpdf.text.pdf.PdfDictionary”. I tried to find the answer but no
> didn’t get any. Here is my code . is there any way I can do the job what I
>  intended. I will really appreciate  the  if there is any work around.
>
>
>
>
>
> Sincerely
>
> Kabir
>
>
>
> //=============================================================================
>
>
>
>
>
> /*
>
> import java.io.File;
>
> import java.io.FileOutputStream;
>
> import java.io.IOException;
>
> import java.io.PrintWriter;
>
>  import com.itextpdf.text.DocumentException;
>
> import com.itextpdf.text.pdf.parser.PdfContentReaderTool;
>
> import java.awt.Color;
>
>  import com.itextpdf.text.BaseColor;
>
> import com.itextpdf.text.Document;
>
> import com.itextpdf.text.DocumentException;
>
> import com.itextpdf.text.PageSize;
>
> import com.itextpdf.text.Paragraph;
>
> import com.itextpdf.text.Section;
>
> import com.itextpdf.text.Anchor;
>
> import com.itextpdf.text.pdf.PdfReader;
>
> import com.itextpdf.text.pdf.PdfWriter;
>
> import com.itextpdf.text.pdf.PdfStamper;
>
> import com.itextpdf.text.pdf.PdfImage;
>
> import com.itextpdf.text.pdf.PdfContentByte;
>
> import com.itextpdf.text.pdf.BaseFont;
>
> import com.itextpdf.text.pdf.PdfName;
>
> import com.itextpdf.text.pdf.PdfNumber;
>
> import java.io.PrintWriter;
>
> */
>
>
>
> import com.itextpdf.text.pdf.PdfStamper;
>
> import java.io.FileOutputStream;
>
> import java.io.IOException;
>
> import com.itextpdf.text.*;
>
> import java.util.Iterator;
>
> import com.itextpdf.text.pdf.PdfLayer;
>
> import java.util.Map;
>
> import com.itextpdf.text.pdf.PdfReader;
>
> import com.itextpdf.text.pdf.PdfWriter;
>
> import com.itextpdf.text.Document;
>
> import com.itextpdf.text.pdf.PdfDictionary;
>
>
>
>
>
> import java.lang.String;
>
>
>
> import java.io.File;
>
> import java.io.FileOutputStream;
>
> import java.io.IOException;
>
> import java.io.PrintWriter;
>
>
>
> import com.itextpdf.text.DocumentException;
>
> import com.itextpdf.text.pdf.PdfArray;
>
> import com.itextpdf.text.pdf.PdfContentByte;
>
> import com.itextpdf.text.pdf.PdfCopy;
>
> import com.itextpdf.text.pdf.PdfLayer;
>
> import com.itextpdf.text.pdf.parser.PdfContentReaderTool;
>
> import java.io.FileNotFoundException;
>
> import java.util.Set;
>
> import java.util.HashMap;
>
> import java.util.HashSet;
>
>
>
> import com.itextpdf.text.pdf.PdfWriter;
>
> import java.util.Dictionary;
>
> import java.util.Iterator;
>
> import com.itextpdf.text.pdf.PdfDictionary;
>
> import com.itextpdf.text.pdf.PdfIndirectReference;
>
> import com.itextpdf.text.pdf.PdfName;
>
> import com.itextpdf.text.pdf.PdfSignatureAppearance;
>
> import java.util.Collection;
>
> import java.util.Hashtable;
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> public class info {
>
>
>
>     public static void main(String[] args) throws FileNotFoundException,
> DocumentException,
>
> IOException {
>
>
>
>
>
>
>
>         PdfReader reader = new PdfReader("personalize.pdf");
>
>
>
>
>
>         if (isWatermarked(reader))
>
>             System.out.println("is marked");
>
>         else
>
>             System.out.println("is not marked");
>
>          reader.close();
>
>     }
>
>
>
>     public static boolean isWatermarked(PdfReader reader) throws
> DocumentException, IOException{
>
>
>
>
>
>  PdfStamper stamper = new PdfStamper (reader, new
> FileOutputStream("myTest2.pdf"));
>
>
>
>
>
> Map<String, PdfLayer> layers =(Map) stamper.getPdfLayers();   //-à This is
> the line is giving me trouble I think
>
>
>
>
>
>
>
> boolean wm=false;
>
>         if (!layers.isEmpty()) {
>
>             Set<String> keys = layers.keySet();
>
>             for (String key : keys) {
>
>                 if(key.toString().equalsIgnoreCase("layout"))
>
>                     wm=true;
>
>                 System.out.println("Layer name: " + key);
>
>                 //PdfLayer layer = layers.get(key);
>
>                 // do stuff with layer...
>
>             }
>
>         }
>
>
>
>
>
>
>
>
>
>
>
>         stamper.close();
>
>         return wm;
>
>
>
>
>
>     }
>
>
>
>
>
>
>
>
>
>
>
>
>
> }// end of class
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2 & L3.
> Spend less time writing and  rewriting code and more time creating great
> experiences on the web. Be a part of the beta today.
> http://p.sf.net/sfu/beautyoftheweb
> _______________________________________________
> iText-questions mailing list
> iText-questions@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/itext-questions
>
> Many questions posted to this list can (and will) be answered with a
> reference to the iText book: http://www.itextpdf.com/book/
> Please check the keywords list before you ask for examples:
> http://itextpdf.com/themes/keywords.php
>

------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2 & L3.
Spend less time writing and  rewriting code and more time creating great
experiences on the web. Be a part of the beta today.
http://p.sf.net/sfu/beautyoftheweb
_______________________________________________
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Many questions posted to this list can (and will) be answered with a reference 
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples: 
http://itextpdf.com/themes/keywords.php

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