Bar code EAN13 font not recognized by acrobat

Hello everyone,

Sorry for my english, as it is not my native language.

I need to create labels with Bar Codes on Word, and save them as PDF.

I use a font : EAN13.ttf , which is installed in my windows fonts folder. I use Windows 7.

I create a Word document with my bar code written in EAN13 font, and it works very well as I see my bar code which is printable and high quality.

But when I convert it to PDF thanks to Acrobat Pro 9, the bar code disapears, there are unidentified characters instead, as if the font wasn't installed.

I already tried the following actions:

- I installed the Ean13.ttf font in the FONTS folder of ACROBAT under ADOBE folder. Still, it won't work.

- I went into Acrobat's preferences / advanced settings / fonts and I selected "always incorporate font: EAN13". It still won't work...

I don't know what to do!

On windows, the Font is installed and works very well on Microsoft Word...

Do you know how I can have Adobe recognize my font?

Thank you so much in advance,

Greetings from France,

Angèle.