I am currently working on a document in InDesign which I want to export as a PDF to use as a presentation. I've changed the Document Blend Space to RGB and have changed all the swatches I am using to RGB.
Despite this, when I export the document as either a standard or Interactive PDF on some (not all) pages of the PDF it appears like the colors have been misteriously changed from RGB to CMYK. Many of the pages that seem to change even have the same Master Pages as the unaffected pages. I have checked the colours in InDesign prior to export and they are RGB colours, so I have not idea why this is happening?
Any ideas?