Embed Fonts in Print Ready PDF - Illustrator

I think you have a misconception that fonts are not included into a saved PDF by default

The fact is that fonts are embeded, the same way linked images are included too. PDF is defined as portable for such a reason.

Second, outlining text is completely not recomended, there is no reason for doing it for printing. Outlining loses fonts hinting, and at small sizes and low screen resolution at printing, it could play a disaster.

Ton is right that embedding the entire font can increase the file size. However, most fonts don't unduly increase file size, and file size is usually not an issue for printing. In theory, the font should be embedded with the default setting of 100%, but I have sometimes experienced issues with the fonts unless the font is completely embedded as I described at zero%. As Monika recommended, it's always a good idea to communicate with your printing office.

Check with the printing office.

It should be standard practice that they can properly print a PDF with embedded fonts, but you never know how they handle the PDF.

Some might open your PDF with other apps than Acrobat and then print it. Those are usually the ones who ask you to outline fonts.

The font will always be embedded.

The default setting for Subset will embed only the characters that are used in the document, making the filesize smaller.

Setting it to 0% will embed the entire font, even if only one character was used, making the file (sometimes much) larger.

When saving as PDF, in the Save As PDF dialog box, highlight Advanced on the left side. The default for 'Subset fonts when percent of characters used is less than' is 100%. Change it to 0%, zero percent.