Font is weird after saving as to PDF

[eggtitan]

The letter 'o' and the i-dots comes out weird in the PDF after I saved it as such. I used multiple viewers and send the file to my friends who have also confirmed that the 'o's and i-dots are weird. I've attached pictures for reference. I'm using Josefin Sans regular. The semibold also has this issue but the thin and light don't. Please help!

In IllustratorIn PDF

[eggtitan]

I'm using Josefin Sans regular. The semibold also has this issue. The light and thin doesn't.

[Ton Frederiks]

Where did you get these fonts?

I tried Typekit/Adobe Fonts without the problem.

[defaultzbp3n6qo71dl]

I did with Adobe Fonts instead of google fonts but still its de weird o with exporting to PDF.