How to create date field that automatically displays today's date in Acrobat DC

[annaa33245733]

I would like to post a form online for people to download/print. Each time someone opens up the form, I need a date field on the form to automatically populate today's date and for it to be read only. They must be able to print/download the form for themselves. Thier downloaded form should retain the date that populated when they first printed it. However, the original form as posted online should re-populate today's date for any user who opens it. 

I have been experimenting with different Javascript solutions I found online, but many are for other versions of Acrobat and I can't get anything to work. Does anyone have a solutation specifically for Acrobat DC 21.0? The more specific, the better. Thanks so much for any advice! 

[Asim123]

Are they opening and fill file online?

[annaa33245733]

Yes, that's correct. 

[try67]

Go to Tools - JavaScript - Document JavaScripts and add a new script. Remove all the code that's created by default and add this instead (let's say your field is called "Today"):

this.getField("Today").value = util.printd("dd/mm/yyyy", new Date());

This will only work in PDF viewers that support scripting, of course.