Illustrator file

[#1]

I made a flyer in Illustrator. I need to make changes to it but I cannot edit the pdf it saved it as. Please help 

[#2]

I made a flyer in Illustrator. I need to make changes to it but I cannot edit the pdf it saved it as. Please help 

[#3]

Brian,

I am afraid you need to get back to the AI file you saved as PDF. Hopefully, you saved the final version first as an AI you can just open (the safe way to Save the PDF as a Copy). Or you may have to redo the last changes from the latest AI version.

Preserve Illustrator Editing Capabilities can be your friend,which will also give you an AI version work work with.