added pdf viewer

[ditiya]

Please fill all the details and checkbox, so we can merge PR faster.

Pull Request Template

script name -

What have you Changed

what you changed in the codebase. write here

Issue no.(must) -

Self Check(Tick After Making pull Request)

• [ ] This issue was assigned to me.
• [x] One Change in one Pull Request
• [x] My file is in the proper folder
• [x] I am following clean code and Documentation and my code is well-linted with flake8.
• [ ] I have added README.md and requirements.txt with my script

If the issue was not assigned to you Please don't make a PR. It will mark as invalid.

Join Us on Discord:- https://discord.gg/JfbK3bS

acknowledgment

• [x] I have tested the script and distributed it under an MIT license.

[codeperfectplus]

Please add the requirements.txt and small introduction and instructions README.

[ditiya]

added now