Did you just run into a file that is digitally signed by Václav Slavík? If so, please read on.
You will probably notice Václav Slavík when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Václav Slavík with the following procedure:
Here is a screenshot of a file digitally signed by Václav Slavík:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Václav Slavík and that the file has not been tampered with.
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 Václav Slavík, such as the street name, city and country.
DigiCert SHA2 Assured ID Code Signing CA has issued the Václav Slavík certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Václav Slavík files I've collected, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Václav Slavík files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Václav Slavík.
| Detection Ratio | File Name |
|---|---|
| Not available | Poedit-1.8.10-setup[1].exe |
The analysis is based on certificates with the following serial numbers: