Now how do I save it as a .jpg to become a page in my website?
Good morning,
Put your montage back on screen as if you are ready to print it.
(Assuming you have installed the current version of Qimage Ultimate ) scroll your mouse pointer across the little Print Setup button, upper right corner.
It will say Right Mouse Click will take you to Print To File.
You didn't mention what size the page was... so I can't help you with sizes.
If it is for a web page, you probably don't need 300 ppi. So something along the lines of the screen snap attached.
After that, click the Print button, same as if you were printing to paper.
Notice a check in a box marked RIP. (Rest in Peace) That removes the white areas. (see the difference)
In your case with multiple images on a page, NO CHECK IN THAT BOX.
Hope this works for you.
Fred