Hi there
Hope youa re doing well and thanks for reaching out.
There's likely a mix-up between two different "passwords" here, and clearing that up should get you unstuck.
1. Your Adobe account password (for signing in)
When your employer sent you an agreement through Acrobat Sign, Adobe auto-provisioned a free account tied to your email. You weren't issued a password, you're meant to set one yourself the first time you sign in. Go to https://account.adobe.com , enter your work email, and click "Reset your password" (or "Forgot password?"). Adobe will email a reset link, and from there you can set the password you'll use going forward.
2. A "permission password" on a PDF (document-level password)
If what you're actually being prompted for is a permissions password (sometimes called an owner/master password) on a specific PDF, the password that controls whether the file can be edited, printed, copied, or merged, that one is not something Adobe stores, issues, or can recover. It's set by whoever secured the PDF, and Adobe support has no way to look it up or reset it. The only options are: (a) get the password from the person who applied it, (b) ask them to send an unsecured version, or (c) if it's a document you sent for signature through Acrobat Sign, that signature lock is by design and can't be removed without invalidating the signatures.
What I'd suggest doing:
Could you confirm which scenario matches yours? Specifically:
Are you trying to sign in to Adobe / Acrobat Sign and don't know the password? do the password reset.
Are you trying to open, edit, or merge a PDF that's prompting you for a password? that has to come from the document's owner (likely your employer's admin who set it up).
If it turns out to be the first one and the reset email never arrives, check spam, and confirm with your employer's IT/Adobe admin which email address the account was actually created under.
Hope this information will help.
~Amal