Font turning into symbols
I have a document that I exported as a PDF. All fonts are Museo Slab 900 or 500. When I email to people they cannot read all the font. Some turn into symbols and gibberish. I thought the PDF turns it into a document like an image, where it just reads the image and not the actual font in the document.
Why does this happen? why is 99% of it fine and just one item that is not reading? I am on a mac, others on PC's but they have the fonts installed on their computers. But if they are just viewing the PDF it should not matter if they have the proper font or not, I mean every document cannot be in Arial! (haha).
And if I upload to our website, and people download it from the website it reads fine.....go figure.
Here are the errors and the only font that is not reading.



