Using Illustrator 10 for a small update project and am unable to "place" newly created pdf files into Illustrator for editing. Error returned reads - "Acrobat pdf file format is having difficulties. The file is damaged and could not be repaired." The files are newly created and have been separated from a larger file using a pdf utility and has worked perfectly well in the past. I'm thinking old Adobe software is unhappy with new....any solutions possible here short of buying new or abandonment? Illustrator 10 continues to work well for many small projects.