Add PDF page preview and delete feature

[pragya-manna]

🔀 Pull Request

📌 Issue Reference

Closes #270

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📝 Summary

What issue does this fix?

This PR improves the PDF splitting workflow by adding page previews, allowing users to visually identify pages before extracting them. It also introduces page deletion and restoration functionality, making page selection more intuitive and reducing the chances of extracting incorrect pages.

What major changes were made?

• Added PDF page thumbnail previews using pdf.js.
• Implemented a larger preview modal for better page visibility.
• Added Delete Page functionality to exclude unwanted pages from the output.
• Added Restore Page functionality for accidentally removed pages.
• Added visual indicators for selected, removed, and restored pages.
• Improved the overall UI/UX of the PDF Split tool with a more interactive page management experience.
• Implemented entirely on the frontend without requiring backend changes.

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📸 Screenshots (if applicable)

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✅ Checklist

• My code follows the project's coding conventions
• I have tested all impacted features
• I have updated or added necessary documentation

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🔗 Related Issues / PRs

Closes issue #270

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🏅 Open Source Program Participation

GSSoC 2026 Contributor

💬 Additional Notes

• No backend changes were required.
• Existing functionality was preserved.
• UI/UX improvements added for easier page selection before splitting.

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[pragya-manna]

Hi @Durgeshwar-AI
I have completed the changes for this issue in PdfSplit.jsx. Added page previews and delete/restore page selection. Kindly review the PR.
Thank you!

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Project	Deployment	Actions	Updated (UTC)
pdf-to-png	Ready	Preview, Comment	Jun 13, 2026 6:51am

[Durgeshwar-AI]

@pragya-manna see the preview is not clear when viewed also the deletion logic is good but I also want to keep the selection like how it is at present, keep both.