To set transparency of layer follow these steps:
//create transparency state object
PdfGState transparent = new PdfGState();
transparent.setStrokeOpacity(0.5f);
transparent.setFillOpacity(0.5f);
//set the CB transparency
Rectangle rectangle =
stamper.getReader().getPageSizeWithRotation(i);
cb.beginLayer(wmLayer);
cb.setGState(transparent);
... layer added graphics
Cb.endLayer();
From: Jaakov Jalink
Sent: Tuesday, June 22, 2010 8:44 AM
To: Post all your questions about iText here
Subject: RE: [iText-questions] accessing hidden layer?
I tried to find a working sample code for transparency, I found none.
However transparency just makes your colors lighter, all layers are transparent
by default, so if you want to mark a line make a light colored block over it,
that worked for me (I use a very light colored png files).
From: Janle Sirman [mailto:janle.sir...@gmail.com]
Sent: Sunday, June 20, 2010 7:10 PM
To: Post all your questions about iText here
Subject: Re: [iText-questions] accessing hidden layer?
yes, I've tried that as well but maybe I did it wrong. can you please point me
to some sample code?
I also found this other thread where they talk about something similar.
http://itext-general.2136553.n4.nabble.com/Images-and-shapes-appear-under-stamped-text-td2167020.html#a2167020
" Form fields are visualized using annotations (widget annotations).
Annotations are added on top of the content. That's why you can't
"cover" them "up". "
do you think that is my problem as well?
On Sun, Jun 20, 2010 at 9:30 AM, Jaakov Jalink
<jaak...@syneron.com<mailto:jaak...@syneron.com>> wrote:
Did you try playing with the rectangle opacity??
From: Janle Sirman
[mailto:janle.sir...@gmail.com<mailto:janle.sir...@gmail.com>]
Sent: Sunday, June 20, 2010 6:21 PM
To:
itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>
Subject: [iText-questions] accessing hidden layer?
Hi everyone,
I'm using iText version 2.1.7. I want to highlight a label above a text field
in a 1 page document -- this document is provided to me so I have no control on
how it's created. I've tried everything that I can think of. I've also been
reading the first version of the book and am halfway through. So here's my
problem.
PdfContentByte over = stamp.getOverContent(1);
over.setColorFill( new Color (255, 255, 0) );
over.rectangle (x, y, width, height );
over.fill ();
This code draws the rectangle over my label so the label is no longer visible.
If I use, stamp.getUnderContent() instead, the rectangle gets drawn under my
form. It's as if there's a third layer to this form but I'm not sure how to
access it.
Any help would be greatly appreciated as I've been trying to do this for a
couple of days now.
Thanks,
Jan
Additional details: I have an empty textfield that's drawn on top of the label
and that's how I get co-ordinates of the label that I need to highlight. I've
tried the background option of the textfield as well, but that hides the label
again.
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Check the site with examples before you ask questions:
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