If you want a of GTA 5, buy it legitimately and use the official Rockstar launcher’s “backup game files” feature to create a ZIP for transfer between your own PCs.
Would you like help instead with or creating a backup from your legal copy ? Kevin Games Gta 5 Iso File Zip
Be extremely cautious of any guide promising a "GTA 5 ISO" for PPSSPP or other mobile emulators. GTA 5 was never released for the PSP or older consoles that these emulators support. Most of these files are actually "modded" versions of older games like GTA: San Andreas or GTA: Vice City designed to look like GTA 5. If you want a of GTA 5, buy