Some, like Smart PDF Pro, may come bundled with potentially unwanted programs (PUPs) such as the OneStart.ai browser, which can hijack your search engine, track browsing habits, and degrade system performance. Many of these issues arise when users download such software while working remotely, where our firewall can’t block these unwanted programs. Instead of risky free tools, remember that UT provides licensed Adobe software that is already paid for and safe to use. Always download software from trusted sources, read installation prompts carefully, and use reputable antivirus software to detect and block PUPs.