I have uploaded the form, please check the below URLhttps://workspaces.acrobat.com/?d=1vGCuh5UZeV4RMtV0Idt7gThanks,Vipin

I have uploaded the new file now caption is changinghttps://workspaces.acrobat.com/?d=l95eKksDtWp9oPYxdLFYzQ~Vipin

Please check the attached file if it helps https://workspaces.acrobat.com/?d=x2XeJKvml96r5jFnCnt4iw~Vipin

If you want to convert the uppercase into the lowercase you can use below scriptxfa.event.change = xfa.event.change.toLowerCase();  You need to use this script on change event of textfield.

Its giving me the below error while accessing the file"The file you are trying to access could not be found. The file may have been deleted or moved in another session".Thanks,Vipin

I have shared the new form, where value change in the same textfield.

Please check your mail, i have shared the form. Steps to use the form.1. Open the PDF form2. Type something in the textfield1.3. Press tab key.4. You will find the result in the textfield2.Thanks,Vipin

It seems you are missing something, please share your email ID i'll send the working form.Thanks,Vipin

I'm not sure this trial version will fulfill your requirement. But you can download it from below URLhttp://www.adobe.com/devnet/livecycle/downloads.html

It seems you are facing issue while creating Script object(js).To create a new script object, right-click on the order object at the top of your form hierarchy. Select Insert Script Object from the pop-up menu. A new script object appears below the Validation script object.Thanks,Vipin