I have a new Mac Mini and would like to have apps to write. I have a G4 with Adobe Photoshop, Illustrator, and InDesign CS3. I do not have the discs, the Adobe came with the G4, I bought it used. They cannot be installed on the Mac Mini. Since then I've created many documents with InDesign. The G4 is slowly dying, sometimes it just doesn't power up. Soon I will no longer be able to access the documents. I do not want to pay monthly to Adobe to use InDesign and am wary of people that sell older versions on ebay and Amazon. Also, most Creative Suites are expensive and won't run on Mavericks 10.9. I don't need the whole package. Illustrator I don't use. I only need InDesign, Photoshop (for simple projects). What if I bought an older version of Quark (maybe 4.0), could I convert my InDesign CS3 documents to Quark without problems? I know the opposite works from Quark 3.2.