Thank you for sharing it.

I didn't use any program.
After deciding which pictures I was going to send I clicked '
print' and I chose the option
4 per page(I think they are good sized, you can clearly see everything).
After having them printed I wrote the occasion, names and dates right on the lower part of each photo.
Maybe one day CIC will demand a specific format, or... no paper, only electronic submissions, until then, it's good that we all get a choice.

Many people just include standard photographs with the information written on the back of each picture.
If the images are important, make sure you have the originals - sometimes items do not get returned.