Serif’s Affinity suite is the only true "CS5 killer." It is a one-time purchase (often $40-$70 on sale). It is lightweight, fast, and reads/writes PDF/AI files. It is not portable, but it does not require a subscription.
While the features are robust, the risks of using a "Portable" version of CS5 are severe. Because Adobe does not support this version, users face critical issues: Adobe Illustrator CS5 portable
When users search for they are typically looking for a cracked or repackaged version of Illustrator CS5 that has been modified to: Serif’s Affinity suite is the only true "CS5 killer
Short technical checklist for professionals considering legacy CS5 use While the features are robust, the risks of
If you ignore all warnings and decide to search for an Adobe Illustrator CS5 portable download, at least know the red flags:
Since the release of CS5, Adobe has patched numerous security vulnerabilities. A portable version is unlikely to include these patches. Opening malicious .ai files or using the software on an unsecured network could expose the system to malware.
offer modern features without the security risks of pirated software. System Requirements (for the original CS5)