I need to print customer password on double layer paper using a special thermal printer which the operator can not see the password on the cover paper, while the customer can separate two papers and see her/his password on the underneath.
I want to print the password (say a span element) using CSS, HTML and javascript without showing it to the operator.
The print preview displays the password.
How can I do this?
Or any other solution.
Update:
We have some limitation, including no internet access to use google cloud or other internet resources and as I know we can not avoid print preview in browsers as well.
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Askar
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Perhaps print password in white color? – mplungjan Feb 02 '20 at 07:25
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I did that but it is displayed on the print preview. – Askar Feb 02 '20 at 07:28