HOW DO I ADD 6 MONTHS TO CURRENT DATE!

[GOLO Grenada]

Good day,

I designed a dynamic stamp with 3 fields;

- the current date "_Date"

- the current time "_Time"

- the expiry date "_ExpDate"

I need the expiry date to be 6 months from the current date.

Can someone provide a javascript to calculate the expiry date?

K. Gibbs

[GOLO Grenada]

The price "day" is not important.

I am more interested in the 'month' and 'Year'.

[Bernd Alheit]

Read this:

https://community.adobe.com/t5/acrobat/js-code-for-3-6-month-to-add-to-a-date-date-of-employment/td-... 

[Nesa Nurani · Accepted solution]

You can use this as custom calculation script of Expiry date field:

var today = this.getField("_Date").valueAsString;
if(today == "") event.value = "";
else{
var sixmonth = util.scand("mm/dd/yyyy", today);
sixmonth.setMonth(sixmonth.getMonth()+6);
event.value = util.printd("mm/yyyy", sixmonth);}

[GOLO Grenada]

Thanks Nesa!

I will slap that in and get back to you with the result.

[GOLO Grenada]

Hi Nesa,

I am getting an error with the format of the expiry date.

I need it to be "May 30, 2010" (mmm d, yyyy)

[Nesa Nurani · Accepted solution]

In code just change "mm/yyyy" to "mmm d,yyyy".

[GOLO Grenada]

...and my stamp is perfect!

I know nothing about coding so thanks a million!

[Asim123]

If you are satisfy with an answer pls mark as correct so others can find them.

[GOLO Grenada]

Oh! Sure thing.

[Daniela Barros]

Hey guys, I used the code but it doesn't work in the iPad nor in the iOs. Do you know why? Do I have to change the code?

[try67]

Because the mobile versions of Acrobat support almost no scripting, unfortunately.

Try PDF Expert by Readdle and there's a better chance it will work there.

[Daniela Barros]

Thank you!

[Daniela Barros]

Hey guys,

What if I would like the date to be always the 1st day of the 13th month? Is that possible?

[try67]

Sure. After this line:

sixmonth.setMonth(sixmonth.getMonth()+6);

Add:

sixmonth.setDate(1);

[Daniela Barros]

Thank you : )

[Karl Heinz Kremer]

You received some good information. Let me add some general thoughts: When it comes to dates in Acrobat's JavaScript, you are dealing with "normal" JavaScript, and can research how this particular problem can be solved in JavaScript - without having to limit your search to Acrobat. The "Date" object is part of the core JavaScript language. Any JavaScript implementation consists of two parts: The core language and any potential domain specific extensions. In the web browser, these extensions would deal with web pages and HTML, wheras in Acrobat these exensions are all about PDF documents. But both implementations would provide the same level of support for the Date object - and therefore date specific manipulations. 

[GOLO Grenada]

Thank you karl!

I do research other forums online but many times their advice or solutions do not work.