Even without a license key, the desktop app allows you to process smaller files (up to 200 pages) for free. Top Free & Open-Source Alternatives

There are several ways to obtain a legitimate license key for Sejda PDF Desktop:

A "Sejda PDF Desktop crack" might seem like a quick fix, but the risk of identity theft or a crashed computer is too high. If you love the software, consider supporting the developers with a week-pass or a subscription. If it’s not in your budget, Stirling-PDF