To transfer file my PC to Ipad pro

You should start by reading these support articles and then post back if you need more help.

Transfering music, photos, videos, and other content using iTunes.

Sync your iPhone, iPad, or iPod using iTunes on your computer - Apple Support

This deals specifically with syncing Photos.

Keep your photos safely stored and up to date on all of your devices - Apple Support

You can also use iTunes to transfer documents and other files.

Use iTunes to share files between your computer and your iPhone, iPad, or iPod touch - Apple Support

You can sync photos and music with iTunes. Start here: https://support.apple.com/en-us/HT201253. You will need to get a document app, I use ‘documents to go’ from the App Store to manage my file notes.