If you are open to “Photoshop alternatives” that run natively on 10.7.5, you have excellent options that are 100% free, legal, and virus-free:

Technically, if you want a legally free Photoshop experience on Mac OS X 10.7.5 without paying a cent, you cannot install the full desktop app. However, Adobe offers online.

. However, the latest desktop app may not install on Lion; you may need to use a direct link for a compatible older version of the desktop app first. Standalone License

If you need Photoshop for professional work, buy a used CS6 license or upgrade your Mac. If it’s for hobby use, use GIMP or the free online editor.

Many users misunderstand “free download” to mean “permanently free.” Adobe does offer a 30-day free trial for older CS6 products, provided you have a serial number.

Your Mac running OS X 10.7.5 is a vintage machine, but it’s not dead. With legacy software and open-source alternatives, you can still edit images effectively without breaking the bank or the law.

This web-based tool works in older browsers like Firefox Legacy or Chrome 49 (last compatible with 10.7.5). It provides: