On Thu, Jun 17, 2010 at 09:26:34AM +0200, Michal Hocko wrote:
> Hi,
>
> On Thu, Jun 17, 2010 at 09:32:18AM +0930, Thiele, Nicholas (TA) wrote:
> >
> > I'd like to know if PDFedit (library or GUI) can be used to edit the
> > meta data fields (e.g. Title, Author, Subject, Keywords, Creator) of
> > an existing PDF document and then re-save.
>
> Yes, this functionality is implemented in the library. There is no
> GUI/scripting for it though.
>
> > I've had a look through the documentation and couldn't find any info on
> > this.
> >
> > Any assistance would be appreciated,
>
> CPdf::changeTrailer function is what you are looking for. You simply
I'am sorry, but I have just found out that trailer doesn't contain this
information. It just contains Info entry which is a dictionary which
contains all the information. So you should do something like:
boost::shared_ptr<const CDict> trailer = pdf->getTrailer();
boost::shared_ptr<IProperty> info = trailer->getProperty("Info");
boost::shared_ptr<CDict> infoDict = IProperty::getSmartCObjectPtr<CDict>(info);
boost::shared_ptr<IProperty> a = infoDict->getProperty("Author");
boost::shared_ptr<CString> author = IProperty::getSmartCObjectPtr<CString>(a);
author->setValue("new author");
Unfortunately, this object is reachable only from the trailer and so it
is not accessible from the GUI (property editor) which would be much
easier to work with.
See `10.2.1 Document Information Dictionary' in pdf specification for
more information about metadata.
> need to open a file by CPdf::getInstance and then use the above method
> to add/edit metadata you are mentioning.
>
> Please see also README for information about how to use the library or
> feel free to ask if something is not clear.
>
> > Nic
> >
> >
>
> --
> Michal Hocko
>
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--
Michal Hocko
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