Do I need to sign the cover letter to the editor? When submitting a paper to a journal, often a cover letter to the editor is submitted as well. When this letter is sent by mail / uploaded to the journal's website, do I need to sign the cover letter? And if yes, how? With a certified electronic signature, or with a digital scan of my handwritten signature?
No, you don't need to sign it. (At least that's been my experience with every journal I've dealt with.) My cover letters just tend to be PDF files (uploaded to the journal site) that end like

Yours sincerely,
&lt; List of authors (printed names) &gt;