[Feature] Split PDF (Extract Pages)

[mateipruteanu]

🔹 Difficulty: ⭐⭐☆☆☆ (Medium)
🎯 Usefulness: ⭐⭐⭐⭐⭐ (Very High)

📝 Description

Enable users to split a PDF into multiple smaller PDFs by extracting specific pages.

❓ Why?

• Users may need to extract specific pages without sending the entire document.
• Useful for legal documents, invoices, and academic papers.
• Avoids the need for online services that might compromise privacy.

🛠️ Implementation Details

• Use pdf-lib to extract selected pages from a PDF and save them as a new file.
• Allow users to select pages visually before extraction.
• Provide a preview of extracted pages before confirming.
• Support batch extraction (e.g., extract multiple page ranges at once).