Short answer
To extract pages from a PDF, enter the range you want (e.g. 2-4), choose your file, and download a new PDF containing just those pages. It's free and runs entirely in your browser, so nothing is uploaded.
Pulling a section out of a larger PDF — a chapter, a signed page, an appendix — is a one-line job here: enter the range and download. The original file is untouched.
Because it runs on your device, a confidential document never leaves it.
Enter just that page number (e.g. 5) and download — you'll get a one-page PDF of page 5.
No — the extraction happens in your browser.