Extension change from pdf to PDF Home › Forums › PDF24 Creator › Customization › Extension change from pdf to PDF This topic has 0 replies, 1 voice, and was last updated 4 years, 7 months ago by markok. Viewing 1 post (of 1 total) Author Posts 2019-08-02 at 11:59 #6122 markokParticipant Hi can I use a string to convert pdf to PDF all caps extension. Thank you! Best Regards Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In Log in / Register