Downloading documents from laptop to iPad

By far the easiest and simplest method of moving documents and photos between a Windows PC and your iPad would be to install iCloud for Windows - although you have other alternatives including third-party cloud solutions such as Microsoft OneDrive or Google Drive.

iCloud for Windows

Download iCloud for Windows – Apple Support

Set up and use iCloud for Windows – Apple Support

An alternative strategy might be to consider file transfer between your Windows PC and iPad using a simple USB Thumb Drive or other USB Storage device. If your iPad has a Lightning connector, you’ll need an Apple Lightning to USB 3 Camera Adapter:

https://store.apple.com/xc/product/MK0W2ZM/A

Connect external storage devices to iPad - Apple Support

Consider emailing the documents to yourself.

Or place them on a storage device.

Connect external storage devices to iPad - Apple Support

Another option, is just an external drive or usb flash drive. You can connect one to an iPad via an adapter. Either Lughtning or USB-C depending on mode of iPad.

click here ➜ Connect external storage devices to iPad - Apple Support