You can easily modify the layout of the photo grid on a photos page. For example, you can change the styling of the photos, the number of columns on the page, the number of images that appear, and so on.
Click a photo to display the Photo Grid window.
In the Photo Grid window, make your changes:
Album style: Click to choose a new style of frame for your photos.
Columns: Change the number of columns used to display photos.
Spacing: Drag the slider to modify the space between photos.
Photos per page: Change the maximum number of photos that appear on a single page. If you add more than the maximum, iWeb creates additional pages for your photos and adds page numbers and navigation arrows.
Caption lines: Change the number of lines used for photo captions. To hide captions, choose 0 (zero).
Sorting: If your photos appear on multiple pages (because the number specified in “Photos per page” is lower than the total number of photos), the following sorting options appear in the Photo Grid window:
Show pagination: Displays your photos on multiple pages in iWeb, just as they appear on your published site.
Show all photos: Displays all the photos on a single page as you work in iWeb. This feature makes rearranging all your photos easy. Your visitors see the paginated view on your published site.
You can have up to 300 photos on a single photo page if you set “Photos per page” to 300 in the Photo Grid window. You can add up to 500 total photos to a Photos template, but they will appear on multiple pages, depending on how many columns and photos per page you specify.