Iv only recently started working with artboards to prepare graphics for websites, but I have noticed if i have several artboards in one document, all ligned up, the file size is always huge even though im working to 72dpi. I need to keep the psd incase of amends but the jpegs produced are lovely and small. Any ideas, as some of these documents may contain 10 - 20 or so artboards.
For eample one psd of 6 (1000x1000px) artboards @ 72dpi is 78mb.
Thanks in advance.