Browse and Select unsupported files A website is asking me to upload pdf documents but once I browse to upload all the files (pdf format) they are greyed out and not selectable.

I have tried Chrome, Safari, Firefox but there is no change in the behaviour.

It's not only one pdf, in which case I would think the file is corrupted or something.
At least a fix for this in Chrome will be dragging and dropping the file to the fileupload control on the page.

Drag the file to "Choose file - no file selected" and drop it there, it will be ready for upload.