On  5 Oct, Hamish Moffatt wrote:
> Hi Derek,
> Interesting report, possibly of an unimplemented PDF feature.
> Confirmed in 3.01.
> 
> Hamish
> ----- Forwarded message from Roland Turner <[EMAIL PROTECTED]> -----
> 
> Subject: Bug#331657: xpdf: changethis.com popup text obscures document
> Reply-To: Roland Turner <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> From: Roland Turner <[EMAIL PROTECTED]>
> To: Debian Bug Tracking System <[EMAIL PROTECTED]>
> Date: Tue, 04 Oct 2005 13:47:07 +0100
> X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,
>       DATE_IN_FUTURE_03_06 autolearn=ham version=3.0.4
> 
> Package: xpdf-reader
> Version: 3.00-13
> Severity: normal
> 
> I have some reservations about changethis.com's stance on
> document presentation, and no way of knowing where "fault" lies
> in this case, but notice that the below symptom does not
> appear with gpdf or Acrobat reader. This problem is either an
> xpdf bug (which is worth reporting on its own merit) or with
> changethis.com and the other viewers (in which case
> bug-compatibility with other viewers is probably still worth
> pursuing).
> 
> If you view essentially any of changethis.com's manifestos (e.g. [1])
> a box titled "GO AHEAD AND PRINT THIS" appears over the document
> text.
> 
> - Raz
> 
> 1: 
> http://changethis.com/16.betthis/download/?screen=1&action=download_manifesto

There are a couple different issues there (all missing features in
Xpdf):

* the overlay box is an annotation, which is marked as hidden - Xpdf
  doesn't currently look at the annotation flags (including the "hidden"
  flag)

* the overlay box uses transparency, which is not fully implemented in
  Xpdf

* that PDF file uses an interactive form (among other things, when you
  roll the mouse over the print icon, it un-hides that annotation)

All three of those are in the queue of things to be worked on.

- Derek



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