I am having trouble embedding font to PDF. Already discussed with 3 document experts but no help

Even if the permissions are correct, the other issue is that fonts that are embedded (especially if they are subset, which is normal) only apply to the content in the static part of the form. They cannot be used for fillable form information, the same way they cannot be edited by a 3rd party who does not have the font installed on their system.

I am using windows 10 laptop. the font name is phonics-animals.

By @Prateek_user

This isn't an Acrobat problem: it's that the font can't be embedded into PDFs. That's a licensing restriction put on the font by the manufacturer.

I googled the font phonics-animals and came up with many websites that allow you to download the font for personal use. Usually, the term "personal use" doesn't allow you to embed the font into PDFs (most likely it's restricted), but you must read the EULA (end-user license agreement) to be sure how you can use the font, including embedding it into a PDF.

Here's one font website that shows 2 different downloads, one that's free for personal use, the other is a commercial license that isn't free.

Here's a good blog from CreativePro that gives an overview about fonts and their licences: https://www.creativebloq.com/features/font-licensing

And just because your font says it's "Installable" doesn't necessarily mean it can be embedded into the PDF. It might be installable on YOUR computer system, but not on the recipient's as they view your PDF.

For the most thorough details ever written about this issue, read this post by now-retired Adobe Engineer Dov Isaacs at https://community.adobe.com/t5/type-typography-discussions/is-there-a-list-of-fonts-that-are-1-embeddable-in-a-pdf-and-2-editable-in-the-pdf/m-p/9031568#M8083

Again, find the EULA for your font from the website where you downloaded it. I believe your answer is there.

BTW, that's such a cute font!

Please give us full details of the version of Acrobat in use (not "latest"), as well as how you make the PDF and any errors you get. 

System?

How are you producing this PDF?

and which fonts, specifically?