To ensure the authenticity of a document you have to sign the document with the certificate. I will show you how you can easily sign PDF document with the help of simple tool DigiSigner.
You may have noticed that Facebook ads a the location revealing your wheresbouts at the times you publish post. If you don't want other to know that, this is what you need to do.
With Google drawings you can easily create, share, and edit drawings online. You can insert drawings into other Google documents, spreadsheets, or presentations.
