Would Lightroom 6 work for adding IPTC metadata to BOTH photos and video files? I have a new iMac now and need something that will work on that, and I need something that will work with every type of video format. I have photo and video editing software (Photoshop Elements and Adobe Premiere Elements) but neither will allow me to write/edit metadata. I can't find a free trial version of Lightroom 6. Thanks
I don't think Lightroom writes the metadata to video files. It stores the metadata for videos in its own database.
There is no free trial of Lightroom 6, the only free trial is for Lightroom CC 2015, which I'm sure you can find.