Once your video edit is finalized and "picture locked," the final step is adding captions that drive engagement. As a MixCaptions specialist, we recommend captioning your full-length edited video (up to 30 minutes) in one go before slicing it into high-impact clips for your short-form platforms.
By captioning the entire master file first, you create a perfectly synced, high-accuracy subtitle track that ensures your branding remains identical across every TikTok, Reel, and Short you share.
Step 1: Import Your Final Master Edit
Open the MixCaptions app on your device.
Tap New Project and select your finalized, edited video. MixCaptions supports high-quality imports for videos up to 30 minutes long.
Select your Spoken Language and tap Generate Captions.
Pro-Tip: Ensure your video is fully edited and finalized before importing. Captioning is the "final polish" layer of your professional production workflow.
Step 2: Global Styling and Accuracy
Instead of styling ten different short clips individually, you can perform all your "heavy lifting" on this single master file.
The Global Fix: Review the transcript for the entire video. Correct any technical terms, brand names, or slang once.
Brand Consistency: Choose a font, high-contrast color, and background style that matches your brand identity. Since you are working on the master file, this "look" will stay consistent throughout the entire video.
Positioning for Social: Place your text in the "Safe Zone" (the middle-lower third). This ensures your text won't be covered by social media UI elements when you create your clips in the next step.
Step 3: Export and Slice for Social Media
Once your captions are styled and verified, you are ready to export your master file and create your "social stack."
Export the Full Master: Tap Export to save your high-resolution, captioned video to your camera roll.
Create Viral Clips with PicPlayPost: Open your captioned master file in PicPlayPost.
The Efficiency Gain: Because the captions are now "burned" into the video, you can simply use the Trim tool in PicPlayPost to extract multiple 30–60 second "viral nuggets" instantly.
Consistency: Every clip you cut will automatically carry the same font and high-accuracy subtitles you created in MixCaptions.
Pro-Tip: Optimizing for Multi-Platform "Safe Zones"
Social media platforms do not share the same layout. A caption that looks perfect on TikTok might be covered by a "Subscribe" button on YouTube Shorts or a "View Shop" tag on Instagram.
Because MixCaptions applies your styling globally, you can easily optimize for every platform without starting over:
The Multi-Export Strategy: After you export your master file for TikTok, don't close the app. Simply drag your caption block to a slightly different position to clear the "Safe Zone" for a different platform (like YouTube Shorts).
Reposition and Re-Export: Since your transcription and spelling are already perfect, repositioning the text and hitting export again takes only seconds.
The Result: You get a set of clips perfectly optimized for the specific UI of every platform, ensuring your text is never hidden behind buttons or usernames.
Why the "Caption First" Workflow Wins
Uniform Branding: Every clip you cut from the master will have the exact same subtitle style, making your brand instantly recognizable in the feed.
Accuracy Guarantee: You only fixed the spelling once, so every sub-clip is guaranteed to be error-free.
Platform Flexibility: Easily shift caption positions for different social apps while keeping your transcription and styling intact.
Boost Your Performance
Consistency is the only way to beat the algorithm. By captioning your edited long-form content first and tailoring your "Safe Zones" for each platform, you create a professional, polished presence across the entire social web.
Want to know the psychology of why these captions increase your views? Read our deep-dive: [The Mute Majority]