Vidmore Video ConverterVideo Converter

Video Converter Frequently Asked Questions

Check out the full list of frequently asked questions (FAQs) and answers related to Vidmore Video Converter.

License & Activation

I purchased the product but didn’t get a license code. What shall I do?

Generally, you will receive the license code via email within one hour after the order is completed. If you have not received it in time or lost it, please contact We will send you the license code immediately.

How to register Vidmore Video Converter?

1. Open the register window.

2. Enter your email address and the registration code.

3. Click “Register” to finish the registration.

Does the license key work for both Windows and Mac versions?

No, you can’t use a license key of the Windows version in a Mac version. If you bought the wrong version, you can contact our support team ( within 7 days and exchange the license key.

What shall I do, if the license code is invalid?

1. Make sure you have installed the right product, and the right Windows or Mac version.

2. Copy the license code directly from the email and paste it in the program, to avoid typing errors. There’re no “o” or “l” in the license code.

3. Take a screenshot of the registration window and send it to our support team ( for further help.

Can I transfer my license key to a new computer?

Yes, but the license key needs to be reset. Contact our support team ( and send us your order information (order number, license key). Then we’ll help you reset the key.

Convert Videos

What to do, when the program fails to load a video file?

1. Make sure that the file format is supported.

2. Make sure that the file is not encrypted, such as DRM protected.

3. Make sure that the file is not damaged. (A normal file can be played in VLC.)

4. Drag and drop the file to the file list of the program, and check if it can be loaded.

5. Contact our support team ( for further help. Send us the original file if possible.

How to improve the quality of the output file?

Many factors are affecting the quality of your output file, as the source file, your computer configuration, and the output parameters you choose. You can close other unnecessary programs to make sure that the conversion goes smoothly. There’re different quality options for each format. You shall choose the high quality profile.

If the video has low quality, try the enhance option to improve the video quality.

How to increase the speed of the version conversion?

1. Enable hardware acceleration in the “Preference” window.

2. Close other unnecessary programs while converting.

Can I convert 4K videos with this program?

Yes, the program can convert 4K uhd videos. It supports various 4K video codecs, such as HEVC, H.264, VP9, VP8, WebM.

Can Vidmore Video Converter convert audio files?

Yes, Vidmore Video Converter is also an audio converter that support different audio formats like MP3, M4A, AAC, FLAC, WMA, WAV.

Can I get an ultra-fast but lossless video conversion authentically?

Strictly speaking, converting videos files will alter the underlying data of a file, which implies the quality of your file would be lossy in some degree. So, is there any way to avoid the quality loss during the video conversion? Luckily, Vidmore Video Converter has introduced the ultrafast conversion technology that can convert the video from its proprietary structure and the video quality will be lossless while transcoding, meanwhile, the conversion speed is 60X faster than normal speed. That means you can quickly get an output of the exact same image and audio quality.

If you hope to get a lossless video output at a high rate of speed, you can enable the Ultrafast Conversion feature under the Converter function. Below are the supported input and output video formats:

Supported input formats: MP4, MKV, AVI, M2TS, MTS, MOV, MPG, TS, TRP, M4V, FLV

Supported output formats: MP4, MKV, AVI, MOV, M4V

Note: When you use the Ultrafast Conversion feature, you are not allowed to edit your video files.

Edit Videos

How to merge video clips into one file?

Activate the option “Merge into one file” beside the button “Convert”. Then the program will convert your video clips and merge them into one file.

How to add a logo to my video?

Open the “Edit” window and click the tab “Watermark”. Then you can add a logo to your video, to protect your copyright.

How to split a long video into clips?

Click the button “Trim”. In the new window, you can cut out several clips from your video and save them separately.

How to increase the sound volume of my video?

If the volume of your video is low, go to “Edit” > “Effect” to adjust the volume up to 200%.

How to get rid of the black border around the edge of my video?

Choose a right resolution and the matching aspect ratio in the output profile. Then go to “Edit” > “Crop”, and cut off the black bars around the video.

Other Questions

How to add a subtitle to the video?

If you have a subtitle file for your video, you can simply add it to your video by clicking the plus icon beside the subtitle bar. Subtitles in srt, ass, ssa formats are supported.

Can I convert a DVD with the program?

No, Vidmore Video Converter can’t convert any kind of DVDs to video files.

How to update Vidmore Video Converter?

You can always download the latest version of Vidmore Video Converter on the product page. If there’s a big upgrade, you can also choose “Check Update” under the menu to get the latest update.

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Download this 4K-capable video processing software to convert videos with ease.