Part 1. How to convert 4K videos on Mac?

You can use 4K Converter to convert 4K video to other 4K formats, downscale 4K to 1080p and 720p, or convert 4K video to other common video formats. Taking 4K to 1080p converting as an example, this program will tell you how to use this 4K Converter for Mac correctly.

Step 1. Install and launch this Aiseesoft 4K Converter for Mac on your Mac computer. Register with your email address and registration code which you received from us.

Step 2. Add your 4K video file(s) to this 4K Converter for Mac, or just drag-and-drop the 4K videos to this program directly.

Step 3. Click the drop down button of Profile, you will find all video and audio formats. You are able to find the 1080p from the search bar, and click the one you want.

Step 4. Set the output destination and click the "Convert" button to get the result.

Part 2. How to edit 4K videos on Mac?

Before you convert the 4K videos on Mac, 4K Converter for Mac gives you options to edit video effects. Choose the video you want to enhance, then click the "Edit" button to enter video editing interface, you'll see the editing functions as below.

Rotate/flip video angle

There provides four ways to rotate or flip your video to the right angle: including "Rotate 90 clockwise", "Rotate 90 counterclockwise", "Horizontal flip" and "Vertical flip". With only one click and choose "Apply" to get your expected video.

3D video

If you intend to convert 2D video to 3D, you can click "3D" button to customize 3D settings here. Here you can set 3D as "Anaglyph" or "Split Screen" as you like.

Crop video

Click "Crop" to select the zoom mode as "Letterbox", "Center", "Pan & Scan" or "Full" to get rid of the unwanted edges or capture the wanted parts.

Change Effects

Click "Effect" to change effects here. You can adjust brightness, contrast, saturation, hue, volume and more video/audio effects.

Watermark

If you want to add your own mark to the video, you can click "Watermark" to add text or images as the watermark on your video files.

Part 3. (New added) How to add external subtitle or audio tracks to video?

4K Converter for Mac provides you the option to add external subtitle and audio track to the 4K video. You can do this follow the steps below:

Step 1. Open 4K Converter software on your Mac. Click "Add File" button to import 4K video(s) to this program.

Step 2. Click the audio track option to add or remove external audio tracks in the video. Click "Add Subtitle" button to add the external subtitle to your 4K video.

Step 3. Choose the suitable output video format and save the video file.