If you want to flip or mirror images then you can use the free GIMP tool. It is very easy to do so using this image editor for Windows PC.

How to Open the Toolbar for GIMP. The GIMP image editing program is packed with different panes and toolbars, most of which are hidden to avoid overwhelming the user. Once you've worked out which ...

But, if you use the open-source graphic-editing program GIMP, you need to install another open-source program on your computer, Ghostscript. After installing Ghostscript, you can open .EPS files ...