Calcululation in PDF Form

I have a form that I'd like to calculate the results in and I'm hoping someone could help me.

I want to calculate the percentage of 2 fields.

In the top right hand side of this form is Score: _____ Good   ____  Bad     _____  %
Sue TaylorProject ManagerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

There is something called PDFBox, open source library.
Reading your question again, maybe you don't need the library interface, in which case the calc would be on the lines of

float universe=5;
float good =4;
float bad = 1;

float percentgood = 100/(universe/good);
float percentbad = 100/(universe/bad);


Open in new window

(but excuse me if you were not looking for code, (as it is quite straightforward)).
Sue TaylorProject ManagerAuthor Commented:
Would I enter this info under Text Field Properties, Calculate, Custom calculation script:? fields are really named:
Good, Bad and Calc with Calc being the field where I want the formula calculated.
HTML5 and CSS3 Fundamentals

Build a website from the ground up by first learning the fundamentals of HTML5 and CSS3, the two popular programming languages used to present content online. HTML deals with fonts, colors, graphics, and hyperlinks, while CSS describes how HTML elements are to be displayed.

Sue TaylorProject ManagerAuthor Commented:
Sue TaylorProject ManagerAuthor Commented:
I am not familiar with the PDFBox library, and so I cannot speak about how it interfaces with Java.

you don't need JS

go  to your PDF. Format Good and Bad as numbers, Calc as Percentage (Right click Properties on each field)

The in Calc field go to Calculation and use the Simplified field notation and put

Open in new window


This will give you percentage of the two fields. You need the "/100" as stupidly Adobe PDF makes its own x100 calculation for the Percentage value

I have a sample attached.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.