The extention does not contain valid signature...".

Hi Maxim3,

Can you give us a little more about how you created this file and where you're seeing that error message? (Extension Manager?)

Have you uploaded your ZXP to Adobe Exchange?

Best wishes,

Fraser

Hi Maxim3,

It is difficult to tell what is wrong with your ZXP without inspecting what's inside it, but here are a few things which could cause this kind of error in Extension Manager

• Adding files to the ZXP after it has already been signed
• Adding a whole folder to a ZXP, rather than the contents of a folder (since Extension Manager won't find your MXI in the root level of your ZXP)
• Adding files which contain double-byte characters (e.g. Traditional Chinese)

The command should have looked something like this:

java -jar ucf.jar -package  -storetype PKCS12 -keystore cert.p12 -storepass password outputfile.zxp -C "/inputfolder" .

[note the dot (.) at the end of the command]

Probably the easiest way to package a ZXP is using Adobe Exchange Packager:

https://www.adobeexchange.com/api/Packager.exe

https://www.adobeexchange.com/api/Packager.dmg

...as you can use this to create self-signed certificates, and it guides you through the process of packaging and signing.

Fraser

Hi Maxim3,

Glad you managed to fix the signature problem with UCF.jar.

Yes - you are seeing that alert because you signed the extension with a self-signed certificate. If your extension is uploaded to Adobe Exchange, it will be countersigned/encrypted in such a way that Extension Manager will be able to identify it as an "Adobe Exchange" product and not show this warning - so users installing your product from Adobe Exchange would not see this warning.

Thanks,

Fraser

If you are not uploading your extension to Adobe Exchange and you need to avoid this warning dialog, I think you will need to use a paid certificate from a trusted certificate authority. There is no option for UCF.jar which can remove the warning, unfortunately.

This is the Adobe Exchange forum - perhaps the Extension Manager forum would have more information about what you're trying to do?

Hi Maxim,

Thanks for the suggestion of updating the "Help" link at the bottom of the page at adobeexchange.com to the specific forum - I've added this to our list

Adobe Exchange is the marketplace/store for distributing and selling your extensions - Extension Manager is the tool which installs the extensions on end users' machines.

I mentioned the Extension Manager forum (http://forums.adobe.com/community/creativesuites/extensionmanager?view=discussions) because people there (such as members of the Extension Manager team) may know more about suppressing the warning dialog you are seeing. As far as I know, the only way to do this without using a paid certificate is by submitting it to Adobe Exchange.

Kind regards,

Fraser