Does the PDF export functionality embed fonts?

I’m having trouble exporting PDFs of frames. Do you know if the export functionality embeds the fonts? I will import the generated pdf frame into another work that requires to be PDF/A compliant, so I need the font embedded in the frame in the first place. I tried with Adobe Reader, and it does not say “embedded”, which is usually a sign that it’s not. I tried with another software (Okular), and it does say “fully embedded”.