Question: I'm using the Adobe CS5 suite and trying to upload all of my pictures to Facebook... and .NEF files are too large to upload, any suggestions?

Answer: 
I'm surprised no one has mentioned Nikon's own ViewNX, which will allow you to select all the images in a folder and batch convert them from .NEF to .JPG. The program is free, and came with the camera and if not, it can also be [downloaded](http://www.nikonusa.com/en/Nikon-Products/Product/Imaging-Software/NVNX2/ViewNX-2.html) from the Nikon USA site 

Facebook upload is already integrated in ViewNX2. Here is a screenshot of a portion of the preferences screen for illustration purposes.

![enter image description here](https://i.stack.imgur.com/8ct1q.png)
Everybody have focused in how to automatically convert NEF (Nikon proprietary raw format) after the fact where you loose all control over the development, I am going to propose you to use an in camera method that will give you much better copies.

If you have a Nikon, you also have Picture Control on your camera, it allows from some to a lot development set at customs presets (depending on the camera model). In my opinion to get the best of both worlds when you should shoot NEF + Fine JPEG, the JPEG will be the developed raw applying the Picture Control and WB you chose for each picture.

By the way this is how every photo-journalists that I know works if they have to meet a tight deadline.

By the way the Picture Control settings are also saved within each of the NEF files, but in a proprietary/secret nikon format (**I don’t understand the logic behind this awful Nikon policy**) that can interpret it to render the raw files only in Nikon’s ergonomically awful developing software. **They are good at making cameras so the should stick with it and partner with a large photo editing software company to provide the bundled developing soft. and make Picture Control setting in NEF opensouce**.

On the other hand knowing that you use Adobe CS5 suite and the quality of its jpeg exports, in my personal opinion you should not be bulk uploading to Facebook: first, for privacy reasons (you need to have a proper model and property release signed for each of you photos that explicitly allows you to upload to social network, it would be better if they explicitly allows uploading to Facebook -which is more than a social network), and secondly, because Facebook compression algorithms are so aggressive that will render an awful picture with a lot of compression artifacts.