A "patched" PDF likely indicates a security risk, such as a malicious file engineered with an exploit or a version with digital rights management (DRM) removed. Security-focused "reports" for such files typically come from sandbox analysis or scanners like VirusTotal, which detect embedded Trojans or ransomware [1].
The creator appends new data to the end of the PDF file without rewriting the entire document, fixing specific elements. little innocent taboo pdf patched
Before opening any downloaded file, run it through an online multi-engine scanner like VirusTotal to check for embedded malicious scripts or macro exploits. A "patched" PDF likely indicates a security risk,