No Default Value in Fillable PDF Calculation

Question

Hello, I'm hoping someone might be able to assist me. I'm in the process of developing a fillable PDF whereby I would like to add a value of '3' to the current year, to reflect when the contract will expire/end. Currently, I have a field whereby the user enters in the year (e.g. 2025; the field is called 'Year_af_date'), and further down in the document I need to add the expiry/end date. For the expiry/end date field, I have used Simplified Field Notation with '3' added to the year field ('Year_af_date'). However, upon previewing the PDF, the '3' appears as a default value until the current year (e.g. 2025) is entered. I have tried everything to eliminate the default value of '3', but to no avail. This seems like it should be a simple fix.. Would anyone know how to prevent the '3' from appearing?

Before the date field is updated:

After the date field is updated: (i.e. 2025 +3)

I would appreciate any suggestions! Thanks in advance!

mian_youtube2001 · Accepted Answer

In the expiry field’s properties, use Custom Calculation Script (not Simplified Notation):var y = this.getField("Year_af_date").value;event.value = y ? Number(y) + 3 : "" Ensure the expiry field’s Default Value is blank.Save/close/reopen the PDF to test.ave/close/reopen the PDF to test.

PDF Automation Station · Answer

Use the following custom calculation script instead:if(!this.getField("Year_af_Date").value){event.value=""}else{event.value=Number(this.getField("Year_af_Date").value)+3;}

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