How to change properties of a png file?

[supercain]

Hi,

I am on Windows 7 and I cant find how to add the author or any other properties for a png file I created. I even read one of the tutorials here but still unable to. The only thing I can modify is the shooting time.

What can I do?

Thank you.

 

[supercain]

Hello? What about some help?

 

[GEWB]

Adobe Lightroom allows editing the EXIF data - Zoner Photo Studio allows most of the EXIF to be edited. Do a DuckDuckGo search and see what comes up.

Regards,
GEWB