How is this different from Split PDF?

Extract keeps a list you choose — pages 2, 7 and 11, say. Split cuts on a boundary: a range, the halfway point, or every page.

Do the extracted pages keep their quality?

Yes. Pages are copied whole, with no re-encoding, so nothing degrades.

Save chosen pages as a new document, together or as separate files.

Runs in your browser — nothing uploadednew

Choose the PDF you want pages out of.
Enter the pages to keep, then decide whether they come back as one document or one file per page.
Press Extract and save.

How is this different from Split PDF?: Extract keeps a list you choose — pages 2, 7 and 11, say. Split cuts on a boundary: a range, the halfway point, or every page.
Do the extracted pages keep their quality?: Yes. Pages are copied whole, with no re-encoding, so nothing degrades.

Combine any number of PDFs into one file, in the order you choose.

Pull out a page range, cut a document in half, or burst every page into its own file.

Delete the pages you do not want and keep everything else exactly as it was.

Reorder, rotate, delete and append pages on a thumbnail board, then save.