Sticky notes formatting problem

Hi Team,

We are adding sticky notes in the PDF with formatting (italic and bold) using the MAC OS. After saving the PDF, when we open the same file in windows PC, the formatting are lost. But this file formatting are fine with MAC OS.

Note: We are using the "Adobe Acrobat Reader DC 2018.011.20035" in PC and MAC.

Is there any compatibility issue between MAC and PC version?

Please advice, how to avoid this error.

Thanks,

Thenmozhiarasan