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Topic: Multiple Column PDF
Conf: (P-PDF) Developers, Msg: 37703
From: cmermukhtar
Date: 4/1/2002 09:36 PM

Hi,

We are making an application that reads table of contents from a PDF file and based on its TOC elements, adds bookmarks to the file. For a single column TOC, the application works just fine but for multiple column TOCs (usually 2 column TOC) the hierarchy gets somewhat distorted.

To keep a correct hierarchy of bookmarks, the strategy that we are working on uses a center point between the two columns. The correctness of our strategy largely depends upon the accuracy of the mid point itself, which is based upon the width of the individual columns. I can provide with more details on this also if someone is interested.

Our basic assumption here is that the two columns are identical in width. But the real problem is that these are NOT identical in width. We have also added some tolerance factor in it, but to no avail.

Is there anyone out there who has already worked with such a problem or could help identify some way of resolving this issue.

Specifically I would like to have help on either:

1. How to determine the right hierarchy of elements of two column TOC (spanned over multiple pages) - which is infact the whole problem.

2. How to determine the precise centre of a 2 column TOC?

Any help would be HIGHLY appreciated.

Regards,
cmer.


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