[Poppler-bugs] [Bug 103530] Support XMP metadata for title, author etc.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103530

--- Comment #4 from Albert Astals Cid <aacid at kde.org> ---
(In reply to Jose Aliste from comment #3)
> We have discussed this in the list but never got to a conclusion. 

Do you have the email subject at hand? I do remember a discussion, but juts
couldn't find it.

> For
> instance, for author there is the info in the catalog and the info in the
> XMP metadata. My understanding of the PDF spec says that if the XMP metadata
> is present, then the catalog data should be ignored.

That is not correct, the rules are more complex as far as i remember.

> Because of that, I tend
> to believe that we need a "High Level API" to get the author that get the
> correct value that agrees with the pdf spec. Of course, it also makes sense
> to still have "Catalog->getAuthor" even if it's supposed to be ignored and
> we also have low level API to get the whole XMP metadata so we are covered
> there. This high level API would belong to poppler IMO since it's part of
> the PDF spec. The second question is whether we should provide
> implementations in each frontend or in core. 
> 
> Albert, how do you feel about introducing a dependency on a xml library
> (libxml2) for instance? so I can try to add a private high level api that
> could be shared by both glib and qt frontends?

I guess that'd be ok

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