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Question

Hi..

I want to develop a form same as this, when i enter some text and submit text should be displayed in the same form above with same gap between each user text and date should be generated by default on the date user submits and when i receive it should display the date to user automatically. what are the best tools develop and code to be used and one more important thing is user/any one should be able to download the file as pdf file which he is submited please help. I want all with code and design also