01
Open Transcode Video in Process
Open Process, then tap Transcode Video.
02
Choose the video to process
In Select Video, tap Choose from Photos or Choose from Files and select your video. You can import a video even when the download list is empty.
03
Choose format, quality, and resolution
Inspect Output Format, Output Quality, and Resolution, then decide whether to retain sound.
Output Format: MP4, MOV, and M4V
These are file containers. Start with MP4 for everyday sharing, or use MOV or M4V if the receiving software requires it. The extension and the codec inside it are different concepts.
Output Quality: detail versus size
High Quality favors detail, Standard balances the choices, and Smaller Size favors a smaller file. Content and other settings still affect the result, so do not rely on the preset name alone.
Resolution and Sound
Options include Original, 720p, 480p, and 1080p*. Original keeps the source dimensions; this example is 640×338. Sound offers Keep Sound and Mute. Reducing resolution may reduce size; increasing it cannot recover missing detail.
04
Understand codec and bitrate
Scroll to Codec, Bitrate, and the output summary. Confirm it matches your choices before tapping Start Processing.
Codec: H.264 and HEVC*
H.264 is a starting option. HEVC requires VIP and can offer efficient compression, but check support in the app or device that will play the file. MP4 can contain different codecs.
Bitrate: Auto, Target Size*, and Custom Bitrate*
Auto lets the tool choose. Target Size and Custom Bitrate require VIP. Under comparable conditions, a lower bitrate often makes a smaller file but can introduce more visible compression artifacts.
VIP options in the illustrated version
The page lists HEVC, 1080p, original high resolution, target size, and custom bitrate as VIP. This example exports low-resolution source media using Original, Standard, Keep Sound, and Auto.
05
Check the result, then save or keep processing
Preview the exported video and compare its size and quality with the original. Check text edges, dark areas, and fast movement before saving.
Preview and save
Play the result and check picture, duration, and sound, then tap Save to Photos. The first save may require permission to add photos and videos. After the success message, check the file in Photos.
What the other buttons do
Keep Processing takes the result into tool selection. Share File opens sharing options. Done closes the result page; it does not save to Photos.
Troubleshooting
Unhappy with the compression?
Keep the original and compare settings on a short clip. Avoid repeatedly compressing an already compressed result.
Frequently asked questions
Why is the file not much smaller?
The input may already be small, or output settings may preserve more quality. Duration, dimensions, codec, and bitrate all affect size.
Will choosing 1080p make a low-resolution video clearer?
Upscaling does not create source detail that was never present. Judge the actual viewing result.
Try it on your device
ClipDock is free to download, with in-app purchases. Features and available options depend on the current app version.
Download on the App Store