Now, more and more devices can record video in 4K resolution. It's likely that you have shot some 4K video in cameras or mobile devices and you may want to merge separate 4K video into one contiguous clip into one file for making a complete film or uploading and sharing on popular video sharing sites. When you are searching on the Internet, you may find that there are many programs on the market can assist to combine 4K video into one file. Have no idea which one to choose, the following article will show you the important standards to pick the 4K video merger.
Important standards to pick the best 4K Video Merger
- Full support for all 4K video wrapped with different container file formats and compression codec.
- Batch conversion mode to load multiple 4K video into the application at one time
- Merge various separate 4K video clips into one file
- Fast merge 4K H.264/H.265 video into one file
- Merge 4K video into various different file formats or with no quality loss
- Available to work on both Windows and Mac platform and has perfect compatibility with the new Windows and Mac OS.
Review of best 4K Video Joiner/Combiner
Based on above listed standards, we have picked the best 4K Video Merge software - Pavtube Video Converter Ultimate to you. The program has full importing support for all 4K file formats such as 4K AVI/WMV/MP4/MOV/MKV/TS/XAVC/XAVC S/MXF and compression codec such as H.264, H.265, Prores, etc.
The batch conversion mode allows you to load multiple 4K video with different container file formats and compression codec into the application for conversion at one time to save your precious time.
Different from some free video merge software such as Windows Movie Maker which only allows you to merge contiguous clips into one, this program lets you to arrange all the 4K video in the right order and then merge all the separate 4K video clips into one file simply by checking "Merge into one file" option on the main interface of the application.
For those people who wish to merge 4K video into H.264 or H.265 format, you can get up to 6x H.264 codec encoding speed as long as you run your computer on Graphic cards that supports Nvidia CUDA or AMD App technology or up to 30x H.265 codec encoding speed as long as you run your computer on Maxwell (GM206) or Pascal based Graphic cards that supports NVENC technology.
The program offers various output format options, so that you can join 4K video while export to any of your desired 4K/HD/2K/HD digital file formats as you like. If you don't want to suffer any quality loss, you can also choose to direct produce the same file format as original file format while keep other profile parameters unchanged.
For your great convenience, the program is available to download and install on both Windows and Mac platform (get Mac version). In addition, it also has perfect compatibility with the new Windows 10 and macOS High Sierra.
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Step by Step to Merge/Join/Combine 4K Video into One File
Step 1: Import 4K Footages.
Launch and start the 4K Video Merge program on your computer, click "File" > "Add Video/Audio" or "Add from Folder" to import source files to the program. Click the "Move up" or "Move down" arrow under the video file displaying window to adjust your source video file order according to your own needs. You also can directly drag and drop your multiple 4K clips into the Video Joiner.
For Mac users, please use the equivalent Pavtube iMedia Converter for Mac which can make you join 4K footages to a single one file on macOS High Sierra, macOS Sierra, El Capitan, Yosemite, Mavericks, etc.
Step 2: Choose output file format.
From the "Format" bar, select your desired output file format from "Format" drop-down options. Here, you can choose to produce one of the two popular 4K file formats such as "H.264 High Profile Video(*.mp4)" or "H.265 Video(*.mp4)" under "Common Video" main category.
Output 4K H.264 MP4 video
Output 4K H.265 MP4 video
Tips: Enable GPU Encode Acceleration.
Click "Tools" > "Options", in the opened "Options" window, click "Acceleration" menu, then check "Enable GPU Encode Acceleration" otpion so that the program will accelerate converion speed when encoding 4K video to H.265/H.264 codec.
Step 3: Merge several videos into one.
On the main interface, check 
option to combine all your separate video clips into one single file.
Step 4: Start separate 4K video clips joining process.
Press the right-bottom "Convert" button, a window will pop out with the conversion progress.
When the conversion is completed, you can find your converted files by clicking "Open output folder" with all merged 4K files into one for further usage.
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