connecting ipad to catalina

I have been trying to transfer a folder of jpegs and a video from the mini to the iPad. These files are NOT in the photos app but in a desktop folder. I want to take the iPad to the client and show them, without an internet connection.

This, I was trying to do using my old Yosemite OS connected to the iPad. A few days ago, as I indicated above, I was able to connect this way. Then, after updating the iPad, all that changed. I had to partition the hard drive so as to keep Yosemite and install Catalina. [Keeping Yosemite allows me to use my old adobe programs; PS CS3 & AE CS4]. Now that I'm able to connect with the new OS I am going to try again. I was able to use dropbox for the video and may well be able to do the same with the jpegs (fingers crossed). If you know of a better way to accomplish this, please advise.

I realize I'm not the sharpest knife in the drawer but it seems as though apple keeps trying to dull my edge...

Still hopeful that my time here asking more questions will be limited but I'm confident apple will find a way to make me return again and again and ...

Thanks for your help.

I am running 15.1 Catalina.

Thanks. Did not know about the change in connecting to finder rather than iTunes. That did the trick.

"Save this file to the Files application."

Is this "files application" located on the iPad? If so, where? Are you referring to the dropbox app on the iPad?

Thanks.

Thanks.

Files must be accessed via iCloud. Since there is a dropbox app on my iPad there is no need to go the extra step to use iCloud.

Thanks again.