Is there a way to automatically resize a cafe's horizontal promo and retime captions for Reels, Shorts, and Stories in DaVinci Resolve?

Looking to repurpose your café's promo videos for platforms like Reels, Shorts, and Stories—fast? If you shot your ad once, but need it formatted and captioned for multiple social platforms, DaVinci Resolve can do the job with some manual setup. Here’s how to extract more ads from every shoot, keep the text in sync, and adapt your video for every channel.

Step-by-Step: Batch Resizing and Caption Retiming in DaVinci Resolve

1. Prep Your Source Project

• Organize your raw footage: Place your edited horizontal (16:9) promo in a clear folder and import it into your Resolve project.
• Import captions: If you have a .srt or embedded subtitle track, bring it in via the Fairlight or Edit page for seamless access.

2. Create Timeline Versions for Each Platform

• Duplicate your sequence for each desired aspect ratio:
  • Instagram Stories/Reels, TikTok: 9:16 (Vertical)
  • Facebook/Instagram Feed: 1:1 (Square)
  • YouTube: 16:9 (Landscape)
• Go to the Edit page, right-click your timeline, and select Duplicate Timeline.
• Change timeline settings: Right-click each version > Timeline Settings > set aspect ratio/pixels for each platform.

3. Rescale and Reposition Footage with Smart Reframe

• Apply Smart Reframe (Studio version only)
  • Select your clip in the timeline.
  • Go to the Inspector. Click Smart Reframe (on recent versions).
  • Choose the subject (e.g., your latte art or chef) as your reframe target.
  • Click Analyze. Resolve automatically pans and zooms to keep your subject centered for vertical, square, or landscape format.
• If you don’t have Studio: Manually adjust footage in Inspector—zoom and reposition using keyframes to keep your subject visible.

4. Check and Adjust Caption Placement

• Re-import or duplicate your captions into each new timeline version.
• Reposition captions as needed:
  • Double-click caption blocks; drag them up/down so they don’t cover key visuals (like hands or products).
  • Adjust font size or alignment to suit the narrower/taller frame.
• Retiming for edits:
  • If your timing changes—say, you cut a shot for the shorter vertical edit—right-click your caption track and select Timeline > Retime Clip.
  • Manually trim or retime caption segments so they always align with the right moments onscreen.

5. Export Platform-Ready Cuts

• For each timeline (vertical, square, horizontal), export using the appropriate preset:

  • Click Deliver > select the social platform preset (or create a custom one).
  • Name your files: e.g., CafePromo_Vertical.mp4, CafePromo_Square.mp4.

• Batch-export all versions by queuing them up in the Deliver page for back-to-back rendering.

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Common Issues & Fixes

• Captions Don’t Align with Cuts: If you trimmed the video differently across formats, check caption timing in each timeline. Slide captions so they start and end in sync with dialogue or visuals.
• Text Gets Cropped: In vertical or square versions, caption placement may block key visuals. Use the Safe Area overlay to reposition all text safely within view.
• Smart Reframe “loses” the subject: Occasionally, auto reframing might miss the focus action. Tweak the tracking point or manually keyframe position/zoom.
• Exported File Too Large: Lower bitrate or use H [264]. encoding to create smaller files ideal for mobile uploads.

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VIDIO Shortcut

If you need to generate multiple ad formats under tight deadlines, VIDIO's AI video editor can save serious time. The smart tools batch-reframe promos (vertical, square, horizontal), automatically retime captions to match edits, and output cuts perfectly sized for every social channel. VIDIO handles captioning, cropping, and batch exports in fewer steps—helping you publish ready-to-go ads when speed counts.

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For small businesses, DaVinci Resolve is a powerful choice if you need total control over your edits. But with VIDIO, you can automate resizing, retiming, and batch-export for all your social ads—no manual tinkering required.