Hi Leonard,
thanks for replying and of course it's my fault to explain better, and not your
interpretive power!!!
So let me give a more general idea of what I have to do, and maybe I can get
some better ideas how to do it.
Think of a light-version of a pdf document pre-flighter (like the one Acrobat
has, only a lot lighter). This concerns a quality acceptance test for a offset
printshop production workflow. There a lot of files are input for processing
and come from a wide variety of outside sources.
Accepted work has to be in CMYK plus combination of Spot (mostly Pantone)
colors but the rest of color space families in PDF (i.e. DeviceGray, DeviceRGB,
CalGray, CalRGB, Lab, Indexed, Pattern) are out of consideration and have to be
rejected, leaving us with DeviceCMYK, ICCBased, DeviceN and Separation color
spaces.
Input pre-flight for a large number of possible errors is currently done in
PitStop Pro and automatic corrective action is taken for contracted work.
Non contracted work is rejected and returned to source for correction. This is
time consuming and if it's only a minor color problem (like some graphic
element left forgotten in a page with the wrong color space - say RGB) this
could be rectified by operator intervention.
Thus a specific preflight test is planned searching (and collecting) each page,
listing all inks (colors) defined for all graphic elements of the page.
The optimum solution is a list of colors used per page.
This for all incoming documents and I believe this can be done.
I hope this time it's more clear
George
From: [EMAIL PROTECTED]: Thu, 10 Apr 2008 23:24:42 +0200To: [EMAIL PROTECTED]:
Re: [iText-questions] How to get a reference by name of all the colors in a
page?
I still think what you are trying to do doesn't make sense - but maybe I am
getting dense...
If I understand you correctly, you will need to write code that parses the PDF
page content stream, as well as iterating colorspace resources and image
resources. In addition, these routines will need to be recursive, in order to
handle any Form XObjects, Patterns, or Type 3 CharProcs that they encounter.
Leonard
On Apr 10, 2008, at 4:31 PM, George Bilalis wrote:
Hi Leonard,I had a newer post this morning with what I came to after some work.
Please look at that.Further to that let's suppose: a document under examination
can be using any (valid) colorspace, or a combination of. If so, I have to get
this information on a page by page base and have the program take some action
depending on that information. To that I also need any named colors (like
Pantone) used besides the normal base colors. This is what I refered originally
-by name - I only need the name of the color used. I don't have to know the
chromatic values of any color used on the other hand. George
From: [EMAIL PROTECTED]: Thu, 10 Apr 2008 16:00:39 +0200To: [EMAIL PROTECTED]:
Re: [iText-questions] How to get a reference by name of all the colors in a
page?
I guess I don't understand this. If I have a color specified as a combination
fo Cyan and Magenta - what is the "name" of that color? Or what about Red +
Green?
What about colorspaces like LAB or ICCBased?
What do you want to do with DeviceN?
Leonard
On Apr 9, 2008, at 4:07 PM, George Bilalis wrote:
Hi Leonard,Thanks for comming back. What I need is the sum of all colors used
in the page and their names. 1. Is CMYK colorspace. Number is 4, the names
"Cyan" "Magenta" Yellow" Black".2. Is RGB colorspace. Number is 3, names are
"Red" "Green" "Blue".3. Is CMYK plus Spot. Number is 4 + ? , names are ("C" "M"
"Y" "K") + ?. Does this makes sense?Thanks
From: [EMAIL PROTECTED]: Wed, 9 Apr 2008 15:47:03 +0200To: [EMAIL PROTECTED]:
Re: [iText-questions] How to get a reference by name of all the colors in a
page?
Do you want to know the colorspaces (RGB vs CMYK vs Spot) _OR_ are you actually
looking at specific color values ([0 0 1], [1 1 0 0], etc.)??
Leonard
On Apr 9, 2008, at 3:08 PM, George Bilalis wrote:
Hi all, I 've searched the forum and found a similar question posted a long
time ago but in different context as I understand it, so please excuse me if a
raise the same subject.What I have to do is: While a pdf document is open and a
loop is counting to end of number_of_pages, I have to run a certain action and
I need to know the total number of colors (RGB and/or CMYK plus Spot if used)
in this page. This number defined as the sum of colors used by all elements on
the page, whether textual, graphic or images. Also I need to know these colors
by name reference (as a string list). The sequence is repeating for each page
and program flow depends on this information.Is it possible through
PageResources class? Or any other procedural way? Thanks in advance
Κατεβάστε 30 ΔΩΡΕΑΝ Emoticons για τον Windows Live Messenger σας! Windows Live
Mail.
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Do you like iText?
Buy the iText book: http://www.1t3xt.com/docs/book.php
Or leave a tip: https://tipit.to/itexttipjar
Κατεβάστε 30 ΔΩΡΕΑΝ Emoticons για τον Windows Live Messenger σας! Είναι δωρεάν!
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Do you like iText?
Buy the iText book: http://www.1t3xt.com/docs/book.php
Or leave a tip: https://tipit.to/itexttipjar
Κατεβάστε 30 ΔΩΡΕΑΝ Emoticons για τον Windows Live Messenger σας! Windows Live
Messenger!
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Do you like iText?
Buy the iText book: http://www.1t3xt.com/docs/book.php
Or leave a tip: https://tipit.to/itexttipjar
_________________________________________________________________
Κατεβάστε 30 ΔΩΡΕΑΝ Emoticons για τον Windows Live Messenger σας!
http://www.livemessenger-emoticons.com/el-gr/-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Do you like iText?
Buy the iText book: http://www.1t3xt.com/docs/book.php
Or leave a tip: https://tipit.to/itexttipjar
