Unfortunately, at this time there is no way to get there from here. Publisher info can be added by the Adobe Content Server if the document is encrypted using ACS. But Acrobat doesn't have an easily accessible "publisher" field. You can try to add it via XMP, but DE doesn't support XMP (yet). We are hoping to resolve this in our next release later this year.
We still have this problem. We add via XMP a publisher value without success (dc:publisher). this value is saved in the pdf file but don't appear when we open this file with ADE. When do you think that it would be possible to populate this field for PDF file ?
2 years... Still no way to enter publisher metadata? 'Unknown Publisher' is very unkind.
Please do help...
My research has shown that Adobe Digital Editions does not support Extensible Metadata Platform (XMP) at all. I really hope that it will get supported very soon! It is strange that the company that developed XMP does not use it them self in their own products.
For now you need to edit the
My Digital Editionsfolder manually. Open the file with an XML editor, and specify the publisher like so:
<dc:publisher>O'Reilly Media, Inc.</dc:publisher>.