Sometimes when I export a file from indesign to pdf, my background doesn't show up. The background is just a block of solid colour, or gradient. The background block of colour is usually the full size of the page. I've tried to play around to see what is causing this to happen and sometimes if I reduce the size of the block to say, 1/3 of the page then the block of colour shows up, but then when I make it the full size of the page as I actually need it to be, the colour block doesn't show up when I export it to pdf (i've tried all the different pdf presets and it doesn't make a difference)??? Does anyone know why and how to fix it?
thanks!