How to convert fonts to outlines in Adobe Acrobat Pro

Open your PDF in Adobe Acrobat Pro.

Check for all fonts present by selecting  Adobe > File > Properties > Fonts

To convert fonts to outlines use the following steps:

Select Tools > Pages > Watermark > Add Watermark...

1. in the dialogue box put a Full Stop in the Text box
2. Set Opacity to 0%
3. Select Apply to multiple
4. Click OK

Now select Tools > Print Production > Flattener Preview

1. Tick Convert All Text To Outlines
2. Under Apply to PDF, select All pages in document, click Apply
3. Click Ok

Fonts should now be converted to paths.

Adobe > File > Properties > Fonts