Transfer Security5 min read

How to Password-Protect a File Transfer

A transfer password adds a second barrier beyond possession of the link. It is most useful when the link and password travel through different channels and the transfer also has a sensible expiry.

Password gate protecting a large-file transfer between sender and recipient
On this page
01

Use password, expiry, and limits together

A password protects access to the recipient page, while expiry limits the time window and a download allowance limits repeated retrieval. These controls address different risks and work best as a deliberate combination.

Generate a strong password locally or enter one you can communicate safely. Nexynto stores a password hash rather than the plaintext password.

  • Send the public link and password through separate channels.
  • Use one-time access only when a single authorized download matches the workflow.
  • Revoke the transfer immediately if the link or password reaches the wrong person.
02

What the recipient sees

Before unlocking, the recipient sees a branded protected-transfer card but no file names. After a valid password, the server issues short-lived access and reveals the authorized file browser.

Every preview and download is checked again against expiry, revocation, scan state, and download allowance.

Put the workflow into practice

Arrange source documents, select the pages you need, and create one PDF locally in your browser. Review the result before choosing any optional next step.

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Frequently asked questions

Clear answers before you merge

Can the password be recovered later?

No. Save it intentionally when you create the transfer; plaintext passwords are not stored in recent transfer history.

Is a password the same as encryption?

No. It is an access control for the transfer workflow, not a claim that the source file itself has been encrypted.

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