Make sure all of your images start with three numbers, an underscore, and have no spaces in the name. E.g.: 001_photo1.jpg 002_photo2.jpg 003_whatever-you_like_just-no%20spaces.jpg The numbers define the order of the images in the slideshow. We need to use Fred's script 'aspect' to help us and you can download it from the link below. Consider sending him some money. He is a Saint for making these scripts. Use this command line (in a git bash shell on windows): rm ultreyas.gif ; echo "Converting..." ; n=1 ; for f in ???_*.jpg ; do g=$(printf '%0.3d' $n) ; echo -n " $f: " ; ./aspect 960x720 -m pad -c black -g Center -f Lanczos $f c_${g}.jpg ; let n++ ; echo "c_${g}.jpg" ; done ; echo -n "Compositing... " ; ls c_???.jpg | wc -l ; convert -auto-orient -delay 800 c_???.jpg -layers OptimizePlus -loop 0 ultreyas.gif This converts all the slides to 960x720 and makes a slideshow with 8.0 sec (800=8x100) between images. Copy the file 'ultreyas.gif' to the / of the website and edit the line in 'Ultreyas.htm' to change the number after the v=YYYYMMDD in the below: Loading slideshow ... References: https://stackoverflow.com/questions/21212152/how-to-make-a-high-quality-animated-image-with-imagemagick http://www.multipole.org/discourse-server/viewtopic.php?t=23583 http://www.fmwconcepts.com/imagemagick/aspect/index.php (this man is a Saint...) https://imagemagick.org/script/download.php#windows https://git-scm.com/downloads