Choose a collage app, website, or design software
Gather the photos you want to use
Select a collage layout or template
Upload or import the photos
Drag and place each photo into the layout
Resize, crop, and rotate the photos as needed
Adjust spacing, borders, and background color
Add text, stickers, or other decorations if desired
Review the collage for balance and alignment
Save or export the finished collage
Share or print the collage