Download the file to your computer and open it in Adobe Reader.
Highlight the words. Open the Text Properties Box by pressing CTRL and E (or CMD and E on a MAC). (My files will not work on phones or tablets; only on computers.)
Choose a new size from the drop down list, or type a new size into the box at the top.
You may want to move the words up to center them vertically on the label.
** All editable files are for PERSONAL USE only.
Read my other editable tutorials for more tips and tricks for editing your files.
Or find answers in my troubleshooting tips if you're having trouble.