Uploading Images and pdfs to your Joomla Site

Earlier this week while I was working on my Joomla website I was trying to upload a couple of projects I had done that were in .pdf format.  For some unknown reason I couldn’t get some of them uploaded.  They were a couple of graphic design projects I had done.  In my major the majority of our projects are paper based, meaning we work in cmyk when using programs like photoshop, illustrator, and inDesign.  Little did I know that caused a problem for me.  When I went into photoshop with some of my .pdf documents I saw that they were saved in cmyk and not RGB.  When I saved the files in RGB and tried to upload them it actually worked.  So as strange as it sounds I’m pretty sure the files/images only work if they are in RGB.  At least that’s the conclusion I came to after spending a lot of time on it.