peteruncle9

Is that the file before editing or after editing? I saw the firmware version is not Paint.net (picasa), so if you didn't edit it the fields could have deleted "picasa"

Thanks for the support, i used your tip and worked. I think that Paint.net updates the Firmware version on EXIF to "Paint.net v3.10"; but i don't care...

no, of course it wasn't

I attach the picture before editing in Paint.net and after i edit. . And that's ok. But when i browse in windows you see the old thumbnail. I tought the same thing: it is an OS part and so i tried to refresh. But when i put on another computer i have the old thumbnail again and i need to refresh it. If it is the OS that generates the thumbnail, where does the OS take the old thumbnail?

I don't know if this is a matter already knew, but when you edit a jpeg image Paint.net doesn't update the EXIF file into it. So with a programm you can view the original image. i really need a fix to this bug.