PDF JS expert to develop PDF viewer

platform where a user (author) can view an existing PDF and build acroform on it (radio button, check box, text box etc.) and then send the PDF or through a link to its students. The individual students can respond on the PDF and the response is captured real time at the back end. ___________________________________________________ 1. the user type 1(test creator aka teacher) logs on the platform by using mobile and OTP or gmail sign-on 2. the user type 1 opens an existing PDF file from the system hard drive or dropbox or google drive etc which is a MCQ (multiple choice objective type) question paper with existing questions for example 30 questions 3. the user selects: • select a question (for example question number 1, 2 14, 21 etc.) • question type of the selected question number- MCQ single correct (radio button), MCQ multiple correct (check box), True False (toggle), Fill up the blank (a specific number like 27 m/s etc. as input in the blank) • Number of choices or options (in case of MCQs like 4 or 5 etc) • The correct choice (the option which is correct like 2nd option or B etc.) 4. the user type 1 drags the options or choices in front of all the answer choices of that question 5. the user type 1 saves the questions paper on the platform by naming the file and the total duration (in minutes) of the question paper- the choices will become inactive after expiry 6. the system automatically generates 3 links from the saved question paper • student registration link • the question paper link • the answer sheet link 7. the students can click the registration link (shared by the user type 1) and register using • name • mobile number with OTP 8. the question paper link will open with a mobile number and OTP and the timer starts (for example 30 minutes as set by the user type 1 earlier) 9. the question paper will only open to the students who have registered themselves to the student registration link earlier 10. the student will take the test by clicking the choices and submit the reply. the students can attempt the questions as many times 11. the system will collect all the response real time and save it at the back end to compare the correct choice