How to Upload Photos from Mac to OneDrive? OneDrive or SkyDrive for Mac is the easiest way to backup photos and videos from your Mac. When you download and install OneDrive on your Mac, it creates a dedicated folder on your Mac which is known as 'OneDrive' folder. The most popular versions of Photo Station Uploader for Mac are 25.0, 1.3 and 1.2. This free Mac app was originally designed by Synology Inc. 
Photo Station Uploader is an app for bulk uploading photos and videos to Photo Station.
It is indirectly related (and therefore relevant) to Apple Photos insofar as the Google Photos Backup up pulls photos from photo libraries on our Macs. But as I mentioned in my earlier post, the Google app currently seems to only pull from the iPhoto Library, not the Photos Library.
But since most of us have now moved over to the new Apple Photos app, our newest content is stored in Photos Library, not iPhoto Library. Hence, it creates confusion when knowing what to do with the Google Desktop Uploader app. And so, this conversation is indirectly tied to Apple Photos insofar as photo library content is concerned. Note that I did not start this thread. I Googled a topic and this thread was atop the results list (the Google support forums did not appear in the results) hence my reply here. Even so, I have replied on Google+ and elsewhere, so no one can chastise me for not having done that.
But I am thankful for this thread insofar as it can actually be discovered, not buried like discussions on Google's support forums. AND, since this thread does pertain to Apple Photos LIBRARIES, regardless of how teensy and tiny a connection that may be, I see no need to spend time here, trolling in vain, trying desperately to slam the brakes on it's existence. Let freedom reign!
Now for the rest of you reading and appreciating this thread, please don't hold back from posting your own experiences, especially if you used the Google Photos Backup app with the iPhoto Library & Pictures options chosen. Did you use the uploader? If so, does it ignore your new photos in Apple Photos Library? Or are your newest photos, stored exclusively in the Photos app (and not in iPhoto), uploaded too? Despite what LarryHN states, I think this topic is directly relevant for Apple users. I had exactly the same queries as you about what options to pick when I first launched the Google Photos Backup App.
Best Photo Uploader
I have about 14,000 photos and have moved to Photo (from iPhoto). I selected both iPhoto and my Pictures Folder (where both my iPhoto Library and Photos Library reside). The uploader then said I had about 14,000 photos to upload so I assumed it was ok and smart enough to not upload the same photos twice (the Flickr Auto Upload app does this).