Adobe reader version by registry

tieungao35,

I am sorry to say, you cannot. There is no single location that you can use to explicitly determine the current version.

Here are the generally accepted methods - all of them, to some extents, hacks.

Dig through the file system to find AcroRd32.exe. In that you can querry the version of the app. However, that does not tell you which version will auto launch depending on file ext or MIME type.

For that you need to start with the .PDF extension in the CLASSES area of the registry HKEY_CLASSES_ROOT\.pdf

Then dig up the PersistentHandler value and search on that - follow the chain - eventually you will find the path to the .EXE that is called when you double click on a PDF or try to surf one from the web.

If you are trying to determine, from inside a .PDF file, what version of Acrobat the PDF is being run on, there are two that can help using JavaScript.

app.viewerVariation - returns values such as 'Reader, Fill-In, Business Tools, Full' (available since Version 5.0)
and
app.viewerVersion - which will return the version number of the current viewer application. (available since Version 5.0)

How the code will work on non-Adobe products will be a exercise left to the reader.

I hope this helps.

Thanks.

tieungao35,

It might be to late to know the solution, But I had the same problem and I was able to verify the user Adobe Reader version from the registry.

You need to look into the [HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Acrobat Reader\9.0\installer\ENU_GUID = {XXXX-XXXXX-XXXX-XXXXX}

The X's identify the reader version installed. In the link below and tells you how to understand the registry key for the version

http://kb2.adobe.com/cps/837/cpsid_83709/attachments/Acrobat_Enterprise_Administration.pdf