PDF File won't upload to Cloud.

The PDF file is about 61.9 MB large.

On the Firefox/Chrome web browser, the progress bar goes to 100, then it says "processing," but afterward, the file never shows up on the Cloud.

When uploading it using Acrobat Reader XI, the progress bar gets to 100%, but then it says "An error occurred while trying to access the service.

Not sure why that may be. Uploading another pdf file of 125 KB worked, but not this one, so I'm guessing it might be the size?