Am 27.07.2015 um 12:49 schrieb Roberto Nibali:
Hi Andreas

  Due to signed NDAs, I cannot send you the PDF. If we can't solve the
issue, I'll try to generate a stripped down version for you, however
that's
going to take a day or so, and I have other pending issues which I'd like
to address first, as the deadline for the final delivery of the tool is
now
definitely coming up.
OK, I see you are not using an incremental update feature. The name of the
modified method "doWriteXRefInc" pretends to be limited to incremental
updates,
but it isn't.


I have uploaded the PDFs here (for a limited time):

​
  ccalt-simple.pdf
<https://drive.google.com/file/d/0B7Bzk_1dcyc5RmcyWVo1ZURyV0k/view?usp=drive_web>
​​
  cctemp-simple.pdf
<https://drive.google.com/file/d/0B7Bzk_1dcyc5UHUtNWh6ampVMnc/view?usp=drive_web>
​

You should already have the code to reproduce my issue from a previous
email to this thread.



I just had another idea. Can you please check the following change

if (trailer.getItem(COSName.PREV != null))
{
     trailer.setLong(COSName.PREV, doc.getStartXref())
}


I modified to the following code, so it compiles:

COSDictionary trailer = doc.getTrailer();
// use previous startXref value as new PREV value
//trailer.setLong(COSName.PREV, doc.getStartXref());
//trailer.removeItem(COSName.PREV);
if (trailer.getItem(COSName.PREV) != null)
{
     trailer.setLong(COSName.PREV, doc.getStartXref());
}

No change, it still breaks my simple test case.
I'm not at home, so that I can't check that myself, but I guess the
following
should do the trick
if (incrementalUpdate)
{
     trailer.setLong(COSName.PREV, doc.getStartXref());
}


Nope, this does not work either. The following does, but that's probably
not what you had in mind:

if (incrementalUpdate) {
    trailer.setLong(COSName.PREV, doc.getStartXref());
} else {
    trailer.removeItem(COSName.PREV);
}

That is exacatly what I have in my mind and I've comitted it already. I'm going to run some additional tests later.

Cheers
Roberto


Thanks so far,

Andreas


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