On Jun 13, 2011, at 21:26, Hydro Meteor wrote:
>
> On Wed, Jun 8, 2011 at 3:41 PM, Christiaan Hofman <[email protected]> wrote:
>
> [SNIP]
>
> Apparently then it's what I thought: Adobe doesn't allow you to use Reader to
> add these annotations (unless somehow you use Pro to allow it). This seems to
> contradict the specs, which basically say that you encrypt to *restrict* what
> you can do, and the specs also don't seem to say anything about this
> particular right. That's the problem with working with a format owned by a
> commercial company.
>
> In the vein of this thread, I took a PDF document which had no comments,
> opened it with Preview Version 5.0.3 (504.1) on Mac OS X 10.6.7 and then I
> added various annotations with Preview. I then saved the PDF and brought it
> over to the very same Windows machine running Adobe Acrobat Reader (version
> 10.0.1) that I used a few days ago to try and read annotations egressed as a
> PDF bundle from Skim. Very interestingly, Acrobat did not once complain about
> reading the PDF with annotations saved from Preview and what is more, I could
> read all of those annotations.
Uhm, that's explained on the FAQ (and here). Again, those are different type of
notes. We have many reasons to NOT save notes in the PDF as Preview does.
Basically what Preview does is Skim's Export as PDF with Embedded Notes, which
has its own problems (problems Preview also has, though you may not have
noticed yet, for instance the fact that Apple does not support higher PDF
versions.)
> So is Apple colluding with Adobe?
No. You apparently don't understand the problem. These two things have nothing
to do with each other. These are different types of notes in different places,
so you should not compare them.
> btw, I disagree with the comment that PDF is "a format owned by a commercial
> company" per the following excerpt:
>
> http://en.wikipedia.org/wiki/Pdf
>
> Originally a proprietary format, PDF was officially released as an open
> standard on July 1, 2008, and published by the International Organization for
> Standardization as ISO 32000-1:2008.
>
No, it's adopted as an open standard, but it's developed and determined by
Adobe. I shouldn't have used the word "owned", but it doesn't change the
argument. They add stuff all the time, and the format does allow leeway of
adding some hidden keys, as they apparently have done here, and note it's a key
affecting only their products.
> The Acrobat Reader is proprietary and yes is owned by a commercial company
> (Adobe) but a variant of the originally proprietary format has been made into
> an ISO standard. Is there not any interest in the Skim community to pressure
> Adobe to "fix" Acrobat 10.x on Windows such that it will correctly read
> annotations exported to PDF bundles by Skim?
>
> -Hydro
>
> Christiaan
>
You really think we can influence Adobe on this?
Christiaan
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