Always back up the stock ltn0.pgf and system font files to your PC before making any changes.
I can recommend the and VPK tools for your specific setup. Share public link
Open Vita3K from the Configurator and press File - Install Firmware to install the downloaded firmware. RetroDECK Wiki
Standard system fonts can feel cramped on a 5-inch screen. Loading a clean, modern sans-serif package dramatically improves legibility in menus and system notifications.
(for graphic design), specific font packs are available that include:
Even with the top font packages, you might encounter problems. Here is how to fix them:
When people talk about downloading "font packages" for the PS Vita, they are usually looking for one of two things: the required for the Vita3K emulator or custom system fonts for a jailbroken handheld console. 1. The Official Vita3K Font Package
Your console must be running custom firmware (HENkaku/Enso) on firmware 3.60 or 3.65 for maximum compatibility.