How to Change DPI (Correctly PPI) in Illustrator

How to Change DPI (Correctly PPI) in Illustrator I was looking for the answer of this and I just found it when you type it on Google (link below). Hope this can help anyone out there as It could help me. How I found my answer... Go to Effects - Document Raster Effects Settings and either check high Quality 300 DPI or do a custom setting and use 355 dpi which is what the high end publications use. Then make your pdf and that should do it. The 72 dpi is a way of keeping the file smaller and have illustrator function faster.