Adobe's PDFLibrary (which can be licensed for server use) includes color
management functionality.
Leonard
From: Jon Wu <j...@wuservices.com<mailto:j...@wuservices.com>>
Reply-To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Date: Wednesday, January 15, 2014 8:12 PM
To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Subject: Re: [iText-questions] Changing colors of graphics and text in imported
PDFs
Ah that's true. Maybe this replacement could work with some serious limitations
then but it sounds very messy / error prone.
Maybe a better question, how would you do what I'm trying to accomplish -
especially since you're part of the Adobe ecosystem?
This might be veering towards InDesign Server stuff, but I have designs that
start in Illustrator and I have 1-5 colors (like a theme) that I want to swap
out programmatically from the server. I start in Illustrator and ultimately end
up with a PDF to print but maybe there's some other flow in between that would
accomplish this better since PDF is obviously not meant to be manipulated.
Thanks again for your input! It's very helpful.
On Wed, Jan 15, 2014 at 4:26 AM, Leonard Rosenthol
<lrose...@adobe.com<mailto:lrose...@adobe.com>> wrote:
What if that color is part of a transparency operation?
What if that color is overprinted? Or knocked out?
and you probably need to find all the places that content can exist in a PDF,
which isn't just a single stream.
Leonard
From: Jon Wu <j...@wuservices.com<mailto:j...@wuservices.com>>
Reply-To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Date: Wednesday, January 15, 2014 11:49 AM
To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Subject: Re: [iText-questions] Changing colors of graphics and text in imported
PDFs
Thanks Leonard.
What if all I'm doing is a few color replacements? Could I just find something
like 0 0 0 1 k in the stream (assuming that's there) and then replace it with 4
numbers for my predetermined CMYK values or are there other intricacies that
would cause issues?
On Wed, Jan 15, 2014 at 1:59 AM, Leonard Rosenthol
<lrose...@adobe.com<mailto:lrose...@adobe.com>> wrote:
Can you do this with iText? Yes. HOWEVER it is going to require you to have a
VERY DEEP understanding of PDF and Color Management/Science.
Leonard
From: Jon Wu <j...@wuservices.com<mailto:j...@wuservices.com>>
Reply-To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Date: Wednesday, January 15, 2014 10:24 AM
To: Post here
<itext-questions@lists.sourceforge.net<mailto:itext-questions@lists.sourceforge.net>>
Subject: [iText-questions] Changing colors of graphics and text in imported PDFs
Hi,
I'm trying to find a way to manipulate the colors in existing PDFs. I saw some
similar questions asked 6 or more years ago and I'm not sure if things have
changed.
Imagine I have a design that started in Adobe Illustrator with text and
graphics and there are 5 distinct colors used in the design such as a color
palette like ones you see on https://kuler.adobe.com/. The goal is to be able
to identify the 5 colors in the PDF and replace with with entirely new CMYK
colors as if I can just change the palette of the design on the fly from code.
If it helps, I could make all 5 of the initial colors anything such as a named
spot color.
Can I (or do I want to) do this with iText?
If not, what about string manipulation / search and replace?
Or I see in past posts there was some mention of other programs to do this but
some examples would be helpful is iText isn't the right tool for this purpose.
Thanks!
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iText(R) is a registered trademark of 1T3XT BVBA.
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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Learn Why More Businesses Are Choosing CenturyLink Cloud For
Critical Workloads, Development Environments & Everything In Between.
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http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk
_______________________________________________
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iText(R) is a registered trademark of 1T3XT BVBA.
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
