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From Kevin Ternes <KTer...@thegeneral.com>
Subject RE: How to manipulate a pdf object
Date Tue, 29 Mar 2016 18:46:13 GMT
Maruan and Tilman,
I think you have answered my question--that I am basically out of luck.
I already ran one through the usual PDF-Tools Debugger but it did not tell me anything that
I thought was useful.  I also tried looking at the PDF under Acrobat's preflight.

But here is the use case:
I have a large number of PDF "templates" that in our usual business process, we use PDFBox
to load, set form field values, add images, merge, flatten, protect, . . .

However, it turns out that the specification for many of these templates has changed so that
a piece of text needs to be moved slightly up, a cm to the left and have the font size changed.
 Then there are some places where someone drew lines around hundreds of form checkboxes!!!
 So while I'm at it I'd like to delete those lines and set the form field widgets to have
a border.

I wanted to write a quick command line program to do this.
I estimate that to do this one-pdf-at-a-time would take 10-20 hours.  That would not be a
problem except that we don't have an intern.

Any suggestions appreciated.

-----Original Message-----
From: Maruan Sahyoun [mailto:sahyoun@fileaffairs.de] 
Sent: Tuesday, March 29, 2016 1:06 PM
To: users@pdfbox.apache.org
Subject: Re: How to manipulate a pdf object


> Am 29.03.2016 um 19:54 schrieb Kevin Ternes <KTernes@thegeneral.com>:
> I have successfully updated form widgets on pre-existing PDFs.
> But what about ordinary non-form objects like a box of text?  I can add NEW objects to
the PDPageContentStream.
> But how do I even get a reference to an existing object?

What is it that you are trying to achieve? You can parse an existing content stream and look
for individual tokens. But there is no guarantee that, what your are calling a box of text,
is treated like that in the PDF as there is no such concept. E.g. individual lines, word,
characters forming a word ... could be placed individually in different operations. It even
might not be text but a vector or bitmap image. Your best bet is to look into the content
using the PDFDebugger and see if you can identify the parts you are looking for.

Maybe you can elaborate a little more on your use case.


> Viewing the document in Acrobat does not give me a clue as to what the object might even
be called.
> PDFBox-2.0.0

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