Changing A3 image to A5

Keep A3 document - file --> export - then save as jpg - this is because it compresses all of the layers into one. This is also recognised easily by photoshop. Remember, when you export, it takes from the edge of the image. Remember to have a background.

Remember that this picks up everything - even those outside the artboard - so delete everything from background.

Import into photoshop, edit image size, save as A5 148 x 210 with 3 mm bleed, then when we place into illustrator, it fits perfectly onto page.

This keeps the size small.