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Compress 4K UHD Videos to Smaller Size without Quality Loss

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4K resolution, aka 4K, has swept the entire world. At present, you can get 4K source from everywhere, like shot with DJI Phantom, DJI Mavic Air, captured with Panasonic/Sony/Canon camcoders, downloaded from Youtube, streaming high definition 4k video from Netflix and more. It absolutely birngs you the splendid visual experience compared with HD videos, from another side, you have to choose to reduce 4K video instead.

4k

Why you compress UHD 4K video?

The main point is nothing but video file size. A minute of 4K at 60fps is approximately 400MB, while only 90MB is taken for a minute of 1080p at 60fps. Thus if you’re 4K video lover, enough storage space is needed. It’s very easy to run out the storage space especially for lower 64GB iPhone or limited free iCould storage. The other point might be 4K video formats incompatibility issue. Firstly, 4k source might come from anywhere like we just talk about above, 4K video cloud be in any container like MP4, MKV, MOV, and other, among them only one MP4 container may covers massive video codec, let alone MKV, MOV, AVI, etc. Secondly, only some of media players, devices, TVs(Play 4K videos on Samsung TV), or monitors, editing software could be able to play 4K resoltuion videos, the left still cannot import and play them. Therefore, to sum up, you do need a way to process and compress your 4K UHD videos in some cases.

When you spend lots of time searching on the internet and find common 4K video processing tools, but are frustrated after testing them. The generated file you get from 4K video compressor looks much blurry and even pixilated. And the conversion costed you a considerable amount of time to finish it. So to get rid of the trouble, a professional and super 4K UHD compressor is essential to reduce 4K videos whilst maintaining video quality at fast speed. While some one would say compression is not possible without quality loss. Yes, but not exactly. Before 4K video compression, it’s best to know the terms of lossy and lossless compression.

Lossless Compression. When a file that has been compressed can be decoded back into its original form with zero loss of information, the compression is said to be a Lossless Compression. Actually, it’s almost a pipe dream unless vector images are scaled based on pure mathematical principles, or an algorithm that stores duplicate pixel data in some place can replace them just as easily. 
Lossy Compression. If, after compression, the original file cannot be brought back again, then the compression is said to be Lossy. Generally, all the video compression we’ve mentioned is lossy since the codec is lossy as such.
Visually Lossless Compression. Lossy compression that produces negligible differences may be called visually lossless. And the aim of every algorithm is to achieve a visually lossless look. Usually what we’re talking about compressing video without losing quality means visually lossless compression indeed.

Best 4K Compressor Pavtube Video Converter Ultimate – You Deserver One

Speaking of a tool to compress 4K video size, Pavtube Video Converter Ultimate (to get Mac version) is worthy of the best one. It takes full advantage of NVIDIA CUDA technology and AMD® Accelerated Parallel Processing (APP) to largely accelerate video encoding speed when you encoding H.264/H.265 video, unlike other software spend long time. It allows you to reduce 4K video size for smoothly importing and editing on iMovie, Final Cut Pro, After Effects, and more. And you know, video downsizing depends upon an array of factors including format, codec, trimming, cropping, changing bite rate, frame rate and other parameters. This 4K compression software allows to reduce 4K videos through adjusting all listed parameters.

  • Convert 4K video to any formats and codecs, like converting 4K UHD video to MP4, AVI, FLV and 200 more formats, transcoding 4K H264 to HEVC, VP9.
  • Adjust video parameters like compressing 4K to 1080p/720p or lower SD resolution, decreasing the bitrate at 20-50%, lowering frame rate from 4K 60fps to 30fps, or changing 4:3 aspect ratio to 16:9 etc.
  • Resize 4K ultra HD by trimming and cropping. The basic editing feature allows you to trim the video length, crop any unwanted parts like black bars.

How to convert and compress 4K video with zero video quality loss?

Step 1: Add 4K videos.

Open the program, click "File" menu, from its drop-down option, select "Add Video/Audio" to load 4K video to the program.

Add 4k source video files

Step 2. Compress 4K video

From "Format" bar drop-down list, choose the formats that you want to output for later use. For compatibility consideration, it is idea for you to choose "Common Video" > "H.264 HD Video (*.mp4)" as output file format.

Select output file format

Open "Profile Settings" window, click "Size(pix)" to select 1920*1080 as the final resolution for output video. Normally, video size is based more on video bit rate than resolution, to get smaller output 4K video, you can lower the video bit rate to complete this task.

Compress 4K video to 1080p

For those people who want to split the large 4K video into several parts, the software also enables you to do so. By clicking the “Split” button  on file list, or from “Edit” menu, you can launch the “Video Split” window. Checking “Enable” to enable it, and then you can split the file by file count, time length, or file size.

split 4k video

After all the settings is completed, hit right-bottom "Convert" button to start to convert and downscale 4K video. Wait for a while, and make yourselves a cup of tea or coffee. when the conversion is over, click the output folder and locate the generated file. Now you can upload the 4K video to Instagram, Vimeo, or play Youtube 4k videos on Android devices, edit DJI Inspire 4K with non-linear editing software.


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