Am 29.01.2016 um 19:41 schrieb Sumit Mohan Jha:
Resending it as Original email failed due to size restriction.
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Hi,
My this email is related to my further questions related to solution
provided by Tilman for PDFBOX-3216issue:
https://issues.apache.org/jira/browse/PDFBOX-3216#
<https://issues.apache.org/jira/browse/PDFBOX-3216>
The solution provided by Tilman is really good. The solution is
working for some of PDF I am trying to process but was facing some
minor issues due to my requirementwith some of otherPDF processing:
My goal here is to read PDF (multiple PDF with different original
formatting and page size) and in each page of individual PDF leave
some fixedabsoluteblank space in top right corner so that later some
other application can put a bar code in that blank space. Also, that
some fixedabsoluteblank space left in top portion of PDF pages need to
be uniform across all the different source PDF file processed, so that
other application which is putting bar code will put same size bar
code at same location of different PDFs.I understand that if some PDF
will already have some more blank space in top compared to other PDF
then converted PDF for first will have more blank space in top
compared to other. That is fine. But how to ensure that after
conversion both PDF will leave at least some fixed absolute height
area blank. If one is more than that absolute fixed height it is ok.
Now, to keep uniform blank space in all PDF processed, I had come up
with a sample code. Please see attached .java file for my sample
code.I have used Tilman sample code provided to come up with my sample
code.
Please see attached some of my example source pdf files which I need
to process through PDFBOX 1.8.10 version and leave blank space at top
in all these PDFs. The challenge here now is to keep uniform some
fixed absolute height area blank in top of these 2 PDFs which are of
different sourceformatting.
1. My code work fine with attached First.pdf.
2. But when I am trying to process Second.pdf, if I scale to 95%
height only the converted PDF is good. But with 90% converted PDF the
content is truncatedfrom bottom. For even less than 90% scaling (like
80%) the converted pdf has blank page.If I scale in width anything
less than 100% the converted PDF is messed up.In the current code the
converted PDF is messing up due to width scaling. For height it is
leaving space in top. But it does not seems to be ensuring that blank
space in both converted PDF is at least some fixed absolute height
area.In second one it is quite less.
What i need is a solution so that my converted pdfs after scaling in
height for both these source pdfs will leave at least some fixed
absolute height area blank.As I explained earlier if one is leaving
more than that fix absolute height is ok as source file already had
more blank space at top.If a little width scaling can be done too it
will be great as some source pdf which has text strating from at the
very left margin will also look good after conversion.But top priority
is vertical scaling to leave blank space in top.
I understand. I expected problems with rotated files, but yours
(http://www.megafileupload.com/ac8r/Second.pdf ) is even trickier:
The PDF page is really a huge page, of which only a rectangle "window"
is shown, with the help of the cropbox. Because of that, the real (0,0)
position is outside of your view, so the "seen at bottom left position"
is no longer there after the scale, it is slightly outside of the "window".
With ordinary files, the (0,0) position is exactly the bottom left, so
all is scaled relatively to that one.
So I need to do some thinking first. Maybe the cropbox must be adjusted
as well.
Coincidentally, the product in the PDF might help (but I have never used
it, nor do I have access to any of it, LOL).
3. Also, with my current code execution, i get below warning message,
please let me know how this warning message can be avoided:
Jan 28, 2016 5:49:29 PM
org.apache.pdfbox.pdmodel.edit.PDPageContentStream <init>
WARNING: You are overwriting an existing content, you should use the
append mode
Don't bother about this one. You are indeed overwriting. You can switch
off the message with a log4j setting.
log4j.logger.org.apache.pdfbox.pdmodel.edit.PDPageContentStream=ERROR
Tilman
Your any help in this regard will be highly appreciated and I am
looking forward for your response on this.
Thanks,
Sumit Jha
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