I understand you're looking for features related to "doPDF 11 activation key," but I should clarify: (by Softland) and doesn't officially require an activation key for its standard version. If a website is asking for a key, it may be a misleading or unofficial distribution.
and does not require an activation key for its standard features The Story: The Quest for the Non-Existent Key dopdf 11 activation key
The reason people often search for an activation key is that they confuse with its "big brother," novaPDF . Both are made by the same company, but they serve different needs: I understand you're looking for features related to
English 
Azerbaijani