Blog

WebTrust vs AATL vs EU eIDAS: Complete Global Trust ComparisonWhen verifying a digital signature, you may encounter three major trust frameworks:● Web...

When verifying a digital signature, you may see references to:● Adobe Approved Trust List (AATL)● EU eIDAS Trusted ListAt first glance, they both appe...

If you are verifying a digitally signed document in Europe, you may encounter the term:EU eIDAS Trust ListBut what exactly is it?And why does it matte...

When verifying a digitally signed document, you may encounter a result like this:● Not listed in Adobe Approved Trust List (AATL)● Not listed in EU eI...

If you receive a digitally signed document, one question often comes to mind:Is this digital signature fake?The answer is not always simple.A digital ...

When you open a signed PDF in Adobe Acrobat and see:“Signature Invalid”It immediately raises concern.But “Invalid” does not always mean the signature ...

When verifying a digital signature, one of the most important — and most misunderstood — concepts is the trust chain.You may see messages like:● “Cert...

Digital signature verification is the process of confirming whether a digitally signed document is authentic, unmodified, and issued under a trusted c...

Digital signatures rely on certificate authorities (CAs).But here’s the problem:There isn’t just one certificate authority in the world.There are thou...