Ability to get page number for bookmarks
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Key: PDFBOX-493
URL: https://issues.apache.org/jira/browse/PDFBOX-493
Project: PDFBox
Issue Type: New Feature
Components: PDModel
Reporter: Adam Nichols
Priority: Minor
Fix For: 0.8.0-incubator
Bookmarks are handled as references (object number and generation number) to
page objects. Currently, it's not too difficult to get the reference to the
page ID, and the page is quickly accessible. The problem is that we don't know
what page number that is, which is a problem in some cases. For example if one
wanted to split the document based on bookmarks, they would need to know how
many pages to make each document.
To solve this in the most efficient manner possible, I feel a Map is in order
which will store page numbers using object IDs as the keys. This map will be
loaded once and then can be quickly referenced many times. For the time being,
the call to generatePageMap() will not happen when a PDF is loaded (it'll have
to be called explicitly). If people find this very useful and not too costly
(memory/CPU) it can be moved into the load function so users can access it
automatically.
I'll attach the code I've written to do this soon (as soon as I figure out how
to do so).
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