How to get PDF to auto generate new invoice number everytime it is open

I need help. I have been reading all the threat and I'm still not getting the pdf auto generate the number. Can someone explain me how to do it? I'm newby, but I need to create a PDF that can generate the number when its open.  Thank you in advanced!

I need to add unique invoice number to a form that will auto-populate the new number every time the form is saved. The number needs to be 2022-IN-20000 with the new number following as 2022-IN-20001 and so forth. Can anyone help? Thanks

hi there, 

can somebody help me to creat a new PDF Invoice Form which it will automate the invoice numbering for every new invoice. 

thanks in advance. 

Is it possible to "Lock" and "Unlock" the automatically generated invoice number? Thank you.

Hello i'm a novice when it comes using the PDF unique numbers, and the code. I have multiple log in portals that are assigned to different team members. When a member logs in I want to have a unique id populate. Will the methods that have been explained work for me in this instance or will I run into trouble since their are multiple portals utilizing the same PDF?

Once the PDF is filled out I have a submit button that will e-mail the PDF to the correct party members. At this point I want the unique number to be saved in my DB so it won't be utilized again.

Am I in over my head here, or is this something I can easily accomplish? Or would making a single portal with one user name and one password be the necessary route to accomplish the process?

Any advice and or assistance will be greatly appreciated. Thank you in advance. This article has already been extremely helpful in my form.

I use"Fill and sign pdf forms" in my android device , what script need to use becose in this soft. Have only save buton, and when i click change original file name.(Maybe need me when save , or save as file)

I entered the code, but it does not automatically change the number.  I have to go into the calculation field in the form, open/close, save and then I get a new number.  This is the code I used.

1. this.getField("Number")=util.printf("%06d",Math.floor((Math.random()*500)+1));

Thank you very much try67 you have saved me many many hours (or milliseconds).

Hey all

I am novice when it comes to adobe so hopefully someone can help me out.  Try67 already got me most of the way with his help and thank you for that but I need one last fix.  I have used this code this.getField("INVOICE").value = Number(this.getField("INVOICE").value) + 1; to make my invoice numbers go up by one every time I open it and it works great.  Now I have the problem of when I save as and rename the invoice to lets say 1001 I want that one to lock but as of now when I open 1001 it adds another number to it and changes it to 1002.  I was hoping that the original pdf will add by one but any copies will be locked down.  I have no idea how to define that.  Any help would be appreciated.

Andy

Hi try67! This feed has been incredibly helpful. How would I modify the script below to make it start at 00000 or 00001 (it's currently starting at 837729)

1. var v = +this.getField("Counter").valueAsString; 
2. this.getField("Counter").value = util.printf("%06d", (v+1));

What I'm trying to do is create a root form with auto-updating work order numbers, that can be saved as separate files, while the root form still increases with each use. If I save the root form after modifying it, then when I open it the next time, the number increases. But if I save it as a separate file, the root form number doesn't change the next time I open it. Is this possible?