Can I resubmit after desk rejection?
To the same journal, usually only if the editor explicitly invites it or the paper has been substantially revised, and many journals don’t accept resubmission of a rejected manuscript at all. Check the editor’s letter and the journal’s policy. Submitting to another, better-suited journal is normal practice; just reformat the paper to that journal’s guidelines and template first.
How long does desk rejection take?
Usually from a few days to two or three weeks, depending on the journal and the editor’s workload. If a paper stays with the editor much longer, it may already have passed the desk stage and be on its way to reviewers.
Does desk rejection affect my chances with other journals?
No. Desk rejection is not a mark on your record, and other journals don’t see it. Some publishers may even offer to transfer your manuscript to a better-suited journal in their portfolio. The real cost is time, which is why it pays to fix the predictable problems before you submit.