pdf 1.4 on the Mac?
I have been requested by a financial institution to submit files on pdf 1.4.
I had no idea of what this is until now, but I could check on another computer with Acrobat Reader that all my files are pdf 1.3, the default and standard with Preview.
I have a Macbook Pro 15" 2018, running Big Sur 11.6.
How can I "upgrade" or transform my files without spending 180$ just for this occasion?
HELP WELCOME
MacBook Pro 15″, macOS 11.2