Did you just stumble upon a file that has a digital signature from LumaPix? If so, please read on.
You'll typically notice LumaPix when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for LumaPix with the following procedure:
Here is a screenshot of a file that has been signed by LumaPix:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by LumaPix and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for LumaPix, such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA has issued the LumaPix certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screencap above.
These are the LumaPix files I've gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the LumaPix files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by LumaPix.
| Detection Ratio | File Name |
|---|---|
| Not available | Collage.exe |
The analysis has been done on certificates with the following serial numbers: