Turn one client video into a month of vertical shorts
A five-step workflow for cutting a long recording into 8 to 15 captioned 9:16 clips, and selling it as a service.
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Transcribe the long video, pick 8 to 15 self-contained moments, reframe each from 16:9 to 9:16, add captions and a hook, then export the batch. One webinar, podcast, interview or product walkthrough gives you about a month of short clips if you cut it this way.
Why one long video feeds a month of posts
Look at it from the client's side. A 45-minute webinar holds maybe a dozen moments worth isolating: a strong opening line, three or four clear explanations, a surprising number, a demo, a good audience question and a closing thought. Each becomes a 20 to 60 second vertical clip. Post two or three a week and one recording covers the month.
The audience is already watching this way. HubSpot's short-form video guide says the majority of marketers agree short-form video yields the highest ROI of any content format, and that the optimal length is 31 to 60 seconds. Sprout Social's data says 60% of TikTok users name short-form video as the format they engage with most, along with 52% of social users on Instagram and 48% on Facebook.
Deloitte's 2025 Digital Media Trends survey found that Gen Z respondents spend 54% more time, about 50 minutes more per day, than the average consumer on social platforms and user-generated video. The client does not need more filming. They need what they already recorded cut for where people watch.
It is also a service you can sell. Our post on the fastest-growing video skills shows why short-form editing keeps coming up, and it packages well as a monthly retainer.
Step 1: mine the long video
Start with a transcript, and read it instead of watching the whole thing again. In text you can spot a self-contained idea in seconds, where scrubbing a timeline takes minutes.
Mark anything that stands on its own without setup: a claim, a short story, a number, a before and after, a strong line. A clip works when a stranger who missed the first 44 minutes still gets it. If a clip needs context to land, it is a footnote and not a short.
Pull more candidates than you will publish. Mark 15, keep the best 10. Give each a rough in point and out point in the transcript, which maps straight back to the timeline.
Step 2: reframe 16:9 to 9:16
The source is nearly always horizontal and the destination is vertical. The lazy fix is black bars above and below, which wastes most of the screen and shows it.
The better fix is a real reframe that keeps the speaker inside the vertical frame. Modern editors can track the subject and move the crop with them. With two people on screen, a stacked split often reads better than a single crop that cuts one of them off. Auto-reframe is the biggest time saver in this workflow, because it replaces manual keyframing.
Check the platform limits before you export. YouTube says Shorts can be up to 3 minutes long, so a vertical clip has more room there than on other apps. Export the same clip as 9:16 for Reels, Shorts and TikTok, and add 1:1 or 4:5 versions if the client also posts to the feed.
Step 3: captions and a hook
A lot of social video is watched with the sound off, so burn captions into every clip. A TikTok study quoted in HubSpot's video statistics found that ad videos with captions got an extra 95% boost in brand affinity, a 58% increase in recall and a 25% jump in uniqueness. Those are ad results, not organic ones, but they point the same way.
Use large, high-contrast text, a few words at a time, timed to the speech. Auto-generated captions from the transcript get you most of the way. Read through them for names and technical terms, because that is where transcription slips.
The hook is the first two to three seconds, and it decides whether anyone stays. Lead with the payoff, not the windup. "Here is why your invoices get paid late" beats "Hi everyone, today I want to talk about." If the strongest line sits at second 40 of the original, move it to second 0 of the clip.
Captions also carry a clip into a second language. A talk recorded in English can have Arabic captions for a Gulf audience, and right-to-left text should be checked on every clip.
Step 4: batch the work
Do each stage once for all the clips, instead of finishing one short from start to end before beginning the next. Cut all ten rough clips. Reframe all ten. Caption all ten. Write the hooks, then export the lot.
Switching between cutting mode and captioning mode is where time leaks, and batching removes that. Keep a small template so the clips look like one series: the same caption style, the same intro frame, the same set of aspect ratios. Consistency is what turns ten clips into a recognisable channel.
Where AI helps and where it does not
Three stages are mostly automated now, and they are the three that used to eat the day. Transcription is fast and searchable, so Step 1 becomes reading. Subject tracking handles reframing in a click. Auto-captioning drafts the text for you to proofread. Some tools also suggest clip-worthy segments, which gives you a list to trim instead of a blank timeline.
What AI cannot do is taste. It does not know which of your client's lines lands with their audience or which hook fits their brand. That judgement is the billable part, and it is why the work is a service and not a button. For what to charge, see the guide to video editing rates.
Working with the client
Two habits make this smoother for paid work.
Get the clip list approved before you polish anything. Send the ten chosen moments as timestamps or rough cuts and let the client approve or drop each one. It is far cheaper to lose a clip at the rough stage than after captioning and reframing.
Keep their raw footage private. An unreleased webinar or interview is sensitive, and uploading it to a cloud service for processing is a real exposure. Editing on your own machine avoids the question of who else holds the file.
How Delivvo runs the client side of a shorts service
Delivvo handles the part around the edit: selling the package, getting approval, delivering files and billing every month. The editing itself happens in your editor of choice, or in Cutroom.
- Sell it as a package. Build a quote with a monthly shorts package and add-ons, such as extra clips or a second language. The client picks what they want.
- Get it signed and paid. The contract goes out from the same link, and the client signs with a typed or drawn signature. Your usage and revision terms are in the contract template, which you edit and have checked by a lawyer.
- Run the approval step in the client portal. Upload the rough cuts, and the client approves or comments on each one. Messages and approvals stay in one place, and the client opens the portal with a one-time code, no password.
- Deliver the files. Files up to 50 GB on Pro and above upload as resumable transfers, so a month of exports reaches the client without a separate file-sharing service.
- Bill every month. Recurring invoices send the monthly fee on a schedule, and a late payment rule reminds at 7, 14 and 30 days until it is paid.
For the edit itself, Cutroom is Delivvo's AI video editor. It runs on your own computer, so the client's footage stays on your machine, and it costs $99 once with no subscription. It has transcription, reframing and captions for the steps above. Clients pay through your own gateway and Delivvo takes 0%. The client approvals page shows the review step.
Read more about Delivvo for teams, or start with the CRM and client portal.
FAQ
How many shorts can I get from one video?
For a 30 to 60 minute source, 8 to 15 good clips is typical. You can push higher, but quality drops when you clip moments that needed context. Ten strong shorts beat twenty-five thin ones.
How long should each short be?
HubSpot's guide puts the optimal length at 31 to 60 seconds. Match the length to the moment. A single claim may need 20 seconds, and an explanation may need 50.
Do I need separate edits for TikTok, Reels and Shorts?
Usually not. A clean 9:16 clip with burned-in captions works on all three. Small tweaks help, such as tightening a beat for TikTok. Export 1:1 and 4:5 versions if the client also posts to the feed.
How do I keep client footage secure?
Process it on your own machine where you can. Local editing means the raw file does not leave your laptop, which is the simplest answer when a client is nervous about unreleased material.
Is this worth selling as a monthly service?
Yes, it fits a retainer well. The client records one long piece a month, and you return a month of shorts. Our retainer pricing guide covers how to price and write it.
Delivvo runs the whole client cycle for service businesses, from the first inquiry to the quote, contract, deposit, invoice and delivery, so a monthly shorts package is sold, approved and billed without chasing. Clients pay you directly through your own gateway, and Delivvo takes 0%. Start free