Is it safe to affix a watermark thanks to an online website on personal documents? [closed]

There are several ways to affix a watermark to a .pdf thanks to online websites. See for instance ilovepdf.com, tools.pdf24.org or one can search "add watermark to .pdf online" into his favourite search engine.
I am aware there e… Continue reading Is it safe to affix a watermark thanks to an online website on personal documents? [closed]

Is beneficial to have one process listing multiple ports to block country?

I have two process, one run as user client, another run as user inspector
The web app admin ( process client ) port 8080
The web app customer ( process client ) port 8081
Single app process listing on multiple ports
The client process … Continue reading Is beneficial to have one process listing multiple ports to block country?