Added PDF-Tools Script

[LakshitF]

Description

Added various functionalities to work with PDFs

Fixes #162

Have you read the Contributing Guidelines on Pull Requests?

• Yes

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines(Clean Code) of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have created a helpful and easy to understand README.md
• My documentation follows Template for README.md
• My changes generate no new warnings

[avinashkranjan]

LGTM..💯

[avinashkranjan]

@all-contributors please add @LakshitF for code and documentation

[allcontributors]

@avinashkranjan

I've put up a pull request to add @LakshitF! 🎉