If you’ve forgotten the password, you can create a new password, or you can always disable the link. You can reset the password for any link you've shared in the same way that you set the password. What if I forget my password for the link or want to change it? If someone tries to view a file using a shared link that requires a password, they’ll be asked to enter a password. Tap Control access under Link settings.

Tap the “ ⁝” (vertical ellipsis on Android) “ …” (ellipsis on iPhone/iPad) next to the file or folder you’d like to add a password to.

To add a password to a shared link on the Dropbox mobile app:

Next to Who has access, choose People with password.

Click the gear icon in the top-right corner.

If a link hasn’t been created, click Create then copy link.

Hover over the name of the folder and click the share icon.

To add a password to a shared folder on :

If you’re adding a password to a view-only link, next to Who has access, choose People with password.

Next to Require password, click to toggle it On.

Click either Link for editing or Link for viewing depending on which link you’d like to add a password to.

Hover over the name of the file and click the share icon (rectangle with an up arrow).

When someone opens the link, they'll need the password to see its contents. Dropbox Professional, Standard, Advanced, and Enterprise customers can add a password to a shared link on or on the Dropbox mobile app.

Dropbox password on folder