If you do want to run Reader Extensions you will still need to do the full LiveCycle (or even ADEP) install to make use of the service or the UI that allows you to extend files.
That said, if you are only extending a small number of forms and you are not doing a lot of versioning of those files you can install LC on your local machine, install the certificate, and then only start up Reader Extensions (the LC service) when you need to extend PDFs.
All depends on the workflow and number of forms that you'll be using and have licensed.
...and in case you were wondering
with respect to the new ADEP packaging, Reader Extensions can still be purchased on it's
own. You do not have to buy the Basic or Standard package. If you would like me to put
you in touch with an account rep to discuss, let me know - stanier@adobe.
Depending on what your needs are you have a couple of choices. From Acrobat Pro you can Reader extend forms to allow local saving of data. There are limitations however which you can read about in the Acrobat documentation - http://help.adobe.com/en_US/acrobat/pro/using/WS58a04a822e3e50102bd615109794195ff-7e0d.w.html. If you needs are great than the limitations or you need RE for other purposes such as enabling Web Services, you'll need to purchase ADEP Reader Extentions. email me at email@example.com and I can put you in touch with an account rep.
Thanks for reply.
Yes, I have seen the limitation of Acrobat pro. Acrbat cannot extend many feature for reader such as export, attachment, populate data from database.......
If ADEP Reader Extentions works in this case I want to buy.
Would you tell me how can I buy? Is there any option to buy through Monebookers?