I use an app called "Photo Transfer App" ($2.99 in the app store). It transfers your photos via the web and, so far, I've not had any trouble with it.
You copy photos from your library and then open the app. It'll give you an http:// address to load on your PC and when you go there, you can either download the photos individually or as a zip file.
You can also transfer photos easily from your PC to your iPad's photo library, also via a web address/site.
Whenever I've needed to use it, it's just worked and I've not been sorry that I bought it.
As always, YMMV.
Marilyn