pdf fonts

Unfortunately, whoever created the PDF didn't embed the fonts into the PDF, so you are now missing them in your PDF. There are 2 solutions:

•  Solution 1: Have the original creator of the PDF re-export the PDF and this time, change the conversion settings so that the fonts are embedded into the PDF. Visit this page for instructions on how to do that in MS Word: https://community.adobe.com/t5/acrobat/exporting-from-word-to-adobe-pro-dc/m-p/10659176#M221357  
• Solution 2: Find the fonts on the web, install them on your computer, and then embed the fonts into the PDF using Adobe Acrobat Pro. Here are instructions: https://community.adobe.com/t5/acrobat/scrambled-text-when-viewing-pdf-documents-in-acrobat-standard-xi/m-p/10690381#M223672 

Note that with solution #2, you must own the fonts or have the license to use them (be careful about copyright restrictions). The fonts also must be embeddable (that is, the font manufacturer doesn't prevent you from embedding the font characters into the PDF).  

There are quite a few websites with freebie versions of the font, but if you use them (or any version other than the one used by the document's creator) there 's a chance that text might miss a glyph or two. 

The best solution is #1, make the PDF correctly from the source file and embed the fonts at that stage.