You should any download link labeled "Sumatra-PDF-Reader-3-5-1-Crack-2023-Full-Version-Free-Download." This is a common scam tactic for several reasons:
It is arguably the fastest PDF reader available. It opens large documents instantly because it lacks the heavy "bloat" found in Adobe Acrobat.
It does not support advanced editing, form-filling, or digital signatures. It is designed strictly for reading . Recommendation
The UI is stripped down to the essentials, providing a massive viewing area for your documents.
The software is a legitimate open-source project released under the GPLv3 license. There is no "Pro" or "Full" version to buy, meaning there is no need for a "crack."
If you are looking for a review of the actual software (Sumatra PDF 3.5.x),