So Inkscape does the correct think when 'Ctrl+S' is used: overwrite the existing file (since Inkscape supports saving as "Cairo PNG (*.png)" and you opened, not imported a PNG file).
Proposing to link as duplicate to Bug #635373 “Opening PNG in Inkscape shows nonsense "png GDK pixbuf Input" alert”
<https://bugs.launchpad.net/inkscape/+bug/635373>
because the 'Link or Embed' dialog is - while IMHO technically correct - confusing in this situation.
> The windows title yeld <FileName>.PNG
So Inkscape does the correct think when 'Ctrl+S' is used: overwrite the existing file (since Inkscape supports saving as "Cairo PNG (*.png)" and you opened, not imported a PNG file).
Proposing to link as duplicate to /bugs.launchpad .net/inkscape/ +bug/635373>
Bug #635373 “Opening PNG in Inkscape shows nonsense "png GDK pixbuf Input" alert”
<https:/
because the 'Link or Embed' dialog is - while IMHO technically correct - confusing in this situation.