Adding Captions to Vimeo

Step 1 - Save Caption File

Once you have processed your video through SyncWords, open the Project Page and scroll down to the Select Output File Types section and check off and download a caption file. Vimeo supports the following captions and subtitles file formats: SRT, WebVTT, DFXP/TTML, SCC, and SAMI files, but Vimeo recommends using WebVTT whenever possible. Vimeo also recommends encoding your caption files in UTF-8 format. (Read how to change it here) Otherwise, captions that contain special characters may not display properly during playback.​
See the Create a New Project and How to Output Captions on how to upload your media, customize your caption style, and save files to your local disc.

Step 2 - Log in to Vimeo

Log in to your Vimeo account.

Go to Manage Videos > My Videos to manage your video uploads.

Step 3 - Manage Video Settings

Click on the video you want to add captions to

Click the gear butter on the right of the video

Step 4 - Add Captions

Select the "Advanced" Video Settings tab

Select Distribution -> Subtitles, and click “My uploads +”

Select the language and Captions type of your file. Then choose the file you downloaded from SyncWords. To load more than one file, repeat this step.

After you finish uploading files, your caption list will look like this:

At this point, you can turn on any caption file you want to be available in the video.

Now when viewers visit your Vimeo video they can turn the closed captions on or off using Vimeo's interface.

For additional information about Captions and Subtitles on Vimeo, visit their FAQ page.