If you need to split large PDFs into specific page ranges without internet access, try this one simple method: use the Softaken PDF Splitter Software, which works completely offline. And this software doesn't require Adobe tools to split. It split tool allows you to split the PDF with no data loss, and also this software keeps all formatting, images, and links intact. You can easily break PDF files by running, like 2–5, 10–12, etc. This tool can split PDF documents without affecting the original file. This PDF splitter tool is fast and easy to use. This is ideal for both beginners and professionals. You do not need any technical knowledge to run this user-friendly software. This tool offers a free trial version.
Try it here: https://www.softakensoftware.com/pdf-splitter.html