The vast majority of the contests we run allow a public entry period, where the public can enter their own images to vote on.
That said, we do run a handful of contests where the Contest Admin prefers to upload photos themselves, turning the public entry period completely off. In this option, only voting is open to participants.
How it Works:
We (GoGo Photo Contest) do not upload entries into the contests we host.
When it’s a small number of entries, we have the Contest Admin (which would be you) add their entries via our 'Admin Mode'. This is done by following the instructions on this page:
Submitting a Test Entry (Or Entries Collected Offline) Into Your Photo Contest➝
This would have to be done one-by-one. In other words, it's not a bulk import (which we don’t have). It does move fast once you have completed a few and gotten into a rhythm.
The second option is more for contests that have 50+ entries. We prepare and run a script that imports the entries. In that situation, we would need the images and a spreadsheet that has the corresponding information that goes with the image (including the image filename).
Either way, the choice is up to you which approach you’d like to take.