The simplest way is to introduce one or two tags in the info.
Paulo
----- Original Message -----
From: "Filipe Fedalto" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, May 08, 2006 7:23 PM
Subject: [iText-questions] Analyzing PDF content
Hi all,
Since this is my first mail to this list, I wish my best congratulations and
regards to Bruno Lowagie and Paulo Soares for their impressive work.
Now to the question:
I am developing a program to ensure that all my PDF documents have the same
basic format. This format is very simple and it is consited of a Generic
Cover-Page and a Generic Watermark. The Cover-Page and Watermark are both
PDF files themselves. The Cover-Page is a one-page PDF document with some
general instructions. It is appended to the very beginning of the document.
The Watermark is a one-page PDF file with an image embedded. It is appended
to the top-left corner of each page of the document. This Watermark PDF file
has a small page size equal to the image itself.
Thanks to the fabulous iText API my program is already working and both
addCoverPage and addWaterMark methods are fully-functional. That is,
whenever I input some PDF file, my program correctly appends the Cover-Page
and correctly inserts the Watermark in the over content of every subsequent
page.
However, I with to add some intelligence to my program so that it is able to
recognize whether some input document already has a Cover-Page or already
has the Watermark. If it already has the Cover-Page, my program is only to
insert the watermark. On the other hand, if all pages already have the
watermark, my program is only to insert the cover-page. Finally, if the
document has neither the cover-page nor any watermark, my program is to
insert both contents.
How can I use iText to analyze any input document to check whether it
already has some content? I don't want to end up with documents having more
than one cover-pages. Also, if I added the watermark more than once, i know
it would be placed over the same place, thus not being visible. However i'm
sure the final object size would be larger than necessary.
I was thinking about having the methods addWatermark and addCoverPage insert
some sort of invisible mark into the documents. This way, if i processed the
document again this invisible mark could be retrieved and checked as a means
to recognize this document were already processed.
Can any of you help me doing that using iText?
Thanks a lot!
Filipe Fedalto
Cansado dos disparates e despautérios da República?
Quer um basta nas desventuras de nossos governantes?
Acesse http://www.monarquia.org.br e http://www.brasilimperial.org.br
e saiba mais a respeito.
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