#868 PDF reoder added

[iamakkkhil]

Added a function reorder_pages() and ifPageExists() with necessary comments have a look and let me know.

Fixes #868

Replace issue_no with the issue number which is fixed in this PR

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Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Documentation Update

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• 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
• I have added tests/screenshots(if any) that prove my fix is effective or that my feature works.

[github-actions]

Congratulations!! for making your first PR at Amazing-Python-Scripts, our mentors will review it soon.

[Kushal997-das]

💯

[antrikshmisri]

LGTM 👍🏻

[avinashkranjan]

LGTM