Debenu Quick PDF Library - PDF SDK Community Forum : Removing Layer Based on Content Group http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 11:51:55 +0000 Thu, 26 Aug 2010 15:31:53 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=1549 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Removing Layer Based on Content Group : I&#039;m sorry if I am not explaining...]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6911.html#6911 Author: Luke
Subject: 1549
Posted: 26 Aug 10 at 3:31PM

I'm sorry if I am not explaining myself well. This is my first time working with PDF's in code.Embarrassed 

Since I already know the name of the Content Group, I can find the Content Group ID.  I have enough control over the PDF's so don't really need to worry about someone else adding a content group with the same name.

My problem is after I get the contentgroup-id, either from a custom field or by searching all the Content Groups for a specific name. How do I find the layers that I associated with content group? When I originally added my watermark, I associated that layer with the code:
 iContentGroup := FPDF.NewOptionalContentGroup( 'WaterMark' );
 FPDF.SetLayerOptional( iContentGroup );
So, now I need to go backwords and find  Layer(s) that I associated with that group.

Hope I explained it better this time.Smile

]]> Thu, 26 Aug 2010 15:31:53 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6911.html#6911 <![CDATA[Removing Layer Based on Content Group : Hi!Do it this way and you have...]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6910.html#6910 Author: Ingo
Subject: 1549
Posted: 26 Aug 10 at 6:36AM

Hi!

Do it this way and you have the id:
...
The problem could be that later after new loading you don't know the contentgroup-id anymore.
Myidea: With QuickPDF you can create own custom fields in the pdf. Thereyou could save the contentgroup-id to be read out later.
...
Cheers, Ingo

]]> Thu, 26 Aug 2010 06:36:54 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6910.html#6910 <![CDATA[Removing Layer Based on Content Group : Thanks though I&#039;m not sure...]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6909.html#6909 Author: Luke
Subject: 1549
Posted: 25 Aug 10 at 4:53PM

Thanks though I'm not sure I understand. After new loading can't I figure out what the content group id by looping through the content groups checking for  the Group Name that matches. 

  if  FPDF.GetOptionalContentGroupName( FPDF.GetOptionalContentGroupID( i ) ) ) = 'WaterMark' then begin
    // Find Layers associated with this Content Group
  end;

To help me understand, what's the point of assigning a layer to a content group if you cannot then find the all the layers of a particular content group?
]]> Wed, 25 Aug 2010 16:53:17 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6909.html#6909 <![CDATA[Removing Layer Based on Content Group : Hi Luke!Only in very general terms...]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6905.html#6905 Author: Ingo
Subject: 1549
Posted: 25 Aug 10 at 6:38AM

Hi Luke!

Only in very general terms ...
1. NewOptionalContentGroup...
2. GetOptionalContentGroup...
3. You have to set a new layer.
4. You have to select this layer.
5. Make your drawings (perhaps with transparency... looks better)...
6. Save...
7. ...
The problem could be that later after new loading you don't know the contentgroup-id anymore.
My idea: With QuickPDF you can create own custom fields in the pdf. There you could save the contentgroup-id to be read out later.

Only thoughts...

Cheers, Ingo

]]> Wed, 25 Aug 2010 06:38:00 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6905.html#6905 <![CDATA[Removing Layer Based on Content Group : Any thoughts? ]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6904.html#6904 Author: Luke
Subject: 1549
Posted: 25 Aug 10 at 5:17AM

Any thoughts?]]> Wed, 25 Aug 2010 05:17:08 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6904.html#6904 <![CDATA[Removing Layer Based on Content Group : I am trying to be able to Add...]]> http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6878.html#6878 Author: Luke
Subject: 1549
Posted: 22 Aug 10 at 1:21AM

I am trying to be able to Add and Remove Watermarks.

Currently I can add a Watermark with the following code:

  Result := FPDF.NewLayer;
  FPDF.DrawText( 100, 400, AWaterMark );
  iContentGroup := FPDF.NewOptionalContentGroup( 'WaterMark' );
  FPDF.SetLayerOptional( iContentGroup );

Now I want to be able to remove all Layers associated with the ContentGroup 'WaterMark'. I see how to find that group with 
    for i := 1 to FPDF.GetOptionalContentConfigCount do begin
      if  FPDF.GetOptionalContentGroupName( FPDF.GetOptionalContentGroupID( i ) ) ) = 'WaterMark' then begin
         // Find Layers associated with this Content Group
      end;
    end;

How do I find all the layers linked to that Content Group? TIA.
]]> Sun, 22 Aug 2010 01:21:42 +0000 http://www.quickpdf.org/forum/removing-layer-based-on-content-group_topic1549_post6878.html#6878