Adobe is behaving correctly. Graphic state is inherited by XObjects.
Leonard
From: Bill Groom [mailto:bgr...@razcall.com]
Sent: Wednesday, May 25, 2011 10:37 AM
To: 'Post all your questions about iText here'
Subject: Re: [iText-questions] Appearance of PdfImportedPage object inconsistent
Hi Mark,
Thanks a lot for your response. I already thought of that workaround but was
hoping for a more "elegant" solution. Apparently there is nothing to completely
reset the graphics state to the default state directly?
I also figured out that pdf readers are rendering these kind of documents in a
different way. Adobe reader for example will render the imported pdf using the
current graphics state in the document (resulting in wrong display of image).
Foxit reader and others are using the default graphics settings for the
imported pdf in the document which results in a correct rendering of the image.
I dived into the Adobe pdf reference but cannot figure out which pdf reader is
behaving according to the pdf specs at this moment. For now I will use your
suggestion.
Thanks,
Bill
Van: Mark Storer [mailto:msto...@autonomy.com]
Verzonden: woensdag 25 mei 2011 18:16
Aan: Post all your questions about iText here
Onderwerp: Re: [iText-questions] Appearance of PdfImportedPage object
inconsistent
I'm afraid this one boils down to "Doc, it hurts when I do this".
Then Don't Do That.
If a particular page depends on a default value rather than explicitly setting
it, and that value is set prior to drawing the PdfImportedPage, then the
exlicit value will "leak through".
This is where the proper use of saveState/restoreState comes in. Going by your
sample code, you've mostly got the idea already. You just need to restoreState
all the way back to the default state before doing your clipping and drawing
your imported page.
--Mark Storer
Senior Software Engineer
Cardiff.com
import legalese.Disclaimer;
Disclaimer<Cardiff> DisCard = null;
________________________________
From: Bill Groom [mailto:bgr...@razcall.com]
Sent: Wednesday, May 25, 2011 2:04 AM
To: itext-questions@lists.sourceforge.net
Subject: [iText-questions] Appearance of PdfImportedPage object inconsistent
In some cases it is necessary to add pdf images and graphics to a document. To
do this I use PdfImportedPage. Unfortunately the appearance of the image in the
final document is not consistent but seems to be influenced by the current
graphics state of the document. When I use for example a dashed stroke in the
document the strokes in the imported image also become dashed (in the original
image they have been defined solid).
A similar issue occurs when text in the imported graphic pdf uses a same font
as the text in the document. In the imported pdf all fonts are embedded (the
same is true for the final document). In some cases the alignment and spacing
of characters differs from the original graphic.
It is not possible to change something in the imported images/graphics. Is
there a way to force a PdfImportedPage object to be treated as a seperate,
independent pdf without being influenced by graphics state of the document?
A snippet of the code being used:
.....
contentbyte.saveState();
contentbyte.rectangle(0, 0, 200, 200);
contentbyte.clip();
contentbyte.newPath();
PdfImportedPage image = writer.getImportedPage(reader, 1);
contentbyte.addTemplate(image, 1, 0, 0, 1, 0, 0);
contentbyte.restoreState();
.....
Thanks,
Bill
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