Hello Adobe Team,

With the introduction of Adobe’s powerful AI and editing tools, PDF editing has become easier than ever. However, this poses a major challenge to the psychological trust of "the vast majority of light users."

For decades, ordinary users have perceived a .pdf file as a digital equivalent of a "printed paper"—an unalterable, finalized document. They do not check properties (Ctrl+D) or look for hidden security tabs. They simply open the viewer, read the file, and trust that it is the definitive, original version.

As editing tools become more mainstream, these light users will face growing anxiety: "Is this PDF genuinely locked and authenticated, or has someone modified the numbers using AI?" If this anxiety spreads, the foundational trust in the PDF format itself will collapse.

Therefore, I strongly suggest adding an intuitive, unmistakable status indicator directly on the top title bar (next to the file name):

[Locked - Original Certified] (With a distinctive icon/color for digitally signed or read-only PDFs)

[Editable - Draft / Standard] (For regular PDFs that allow editing)

Just as web browsers place a clear lock icon in the address bar to instantly reassure everyday internet users, Acrobat Reader must provide a quick, intuitive visual cue. Please protect the identity of PDF and the trust of your largest user base—the light users.

Thank you.