Thank you for the suggestion.
Since I do need the functionality of RemoveUnusedObjects somewhere else, I
don't want to touch it.
I've settled down to hack the source code and commented the line of
RemoveUnusedObjects();
in the ReadPdf method of the PdfReader class.
The consequence is that every time the source code is updated, I've got to
merge the hack and the source code once again :P
>________________________________
>Not neccessarily!
>
>You could create a new class that inherits from PdfReader and
overrides RemoveUnusedObjects() (unless it's private... but I think it's
public). Yep, sure is.
>
>So your version of RemoveUnusedObjects can do all that stuff I
suggested the first time around.
>
>--Mark Storer
>
>
>
>
>>________________________________
>> From: WMJ [mailto:[email protected]]
>>Sent: Friday, October 07, 2011 6:49 PM
>>To: [email protected]
>>Subject: Re: [iText-questions] What are those unused objects in a PDFdocument
>>
>>
>>Hello,
>>
>>
>>Thank you for your reply. They are really filtered, since the
>>RemoveUnusedObjects method is called when a PDF document is loaded. Thus
>>I've got to hack the source code and modify the ReadPdf method in the
>>PdfReader class and comment out the calling statement.
>>
>>
>>
>>>________________________________
>>> From: Mark Storer <[email protected]>
>>>Subject: RE: [iText-questions] What are those unused objects in a
>>>PDFdocument
>>>
>>>
>>>Filtered? No. Inaccessible from the root following various indirect
>>>references? Yep. That's why their unused.
>>>
>>>If you really don't want to touch the source, you should be able to step
>>>through all the objects before and after RemoveUnusedObjects, and dump the
>>>ones that were removed after the fact.
>>>
>>>Here's some pseudocode.
>>>
>>>Map<int, str> allObjects
>>>For each indirect object in the reader
>>> allObjects.put(obj number, string representation);
>>>
>>>RemoveUnusedObjects();
>>>
>>>for each indirect object in the reader
>>> allObjects.remove(obj number);
>>>
>>>for each entry in allObjects
>>> System.out.println(entry.value);
>>>
>>>
>>>For PdfArrays and PdfDictionaries, you should be able to use the toString()
>>>of the underlying ArrayList or HashMap. For PdfStreams, you probably just
>>>want to note that its a stream unless you really want to show all the
>>>binary data of some image/font/content stream. The last might be
>>>interesting, but the binary gobbledegook of images and fonts probably won't
>>>tell you much.
>>>
>>>
>
>
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