Start with a destination matrix
The table below describes useful production canvases, not a list of universal acceptance rules. Keep the source resolution and intended framing in mind before choosing one. A larger sequence does not create detail that the footage never captured. If the client supplies a current technical brief, use it to override the house preset and record the change.
| Destination | House starting canvas | Duration decision | Check before release |
|---|---|---|---|
| TikTok | 9:16, 1080 × 1920 | Follow the approved brief and current account capabilities | Interface coverage, commercial audio and CTA |
| Instagram Reels | 9:16, 1080 × 1920 | Verify the intended publishing surface | Cover crops, captions and destination rules |
| YouTube Shorts | Square or vertical for the Shorts format | Official guide describes eligible uploads up to three minutes | Format eligibility, audio rights and final processing |
| YouTube landscape | 16:9, 1920 × 1080 when source supports it | Let the story and approved brief set length | Encoding, packaging and playback |
| OFTV | Landscape working master if requested in the brief | Confirm current submission requirements | Creator approval and supplied technical specification |
For OFTV, do not infer a maximum duration, codec or file-size ceiling from this table. Obtain the current submission brief. For Instagram, verify current details in the help centre or publishing interface; a blocked or unavailable help page is not evidence that an old remembered limit remains correct.
Separate creative length from upload eligibility
An upload limit describes what a platform may accept. It does not tell you how long the story should be or what an audience will finish. Decide creative duration from the premise, useful material and approved brief. Keep a note of the exact eligibility rule checked, especially when a platform distinguishes recommendations, feed surfaces or different types of account.
YouTube’s official Shorts guide describes square or vertical uploads up to three minutes under its stated eligibility conditions. That does not mean every three-minute cut is a good short, or that the same rule applies elsewhere. Avoid using a single maximum-length number as a permanent template across all platforms. Before a large batch, have the publisher confirm the intended upload route and account. A small test can reveal an unexpected crop or classification issue before the team finishes dozens of captions and cover frames based on the wrong assumptions.
Treat safe zones as a preview task
No single rectangle is guaranteed to avoid every overlay on every device and viewing surface. Platform buttons, account names, captions and feed crops can change what is visible. Place essential text and action with comfortable margins, then inspect a destination preview. Test the face, hands, product or demonstration throughout the clip, not only on the thumbnail frame.
Create a review overlay as a house aid, clearly labelled with the surface and date it represents. Keep it out of the export. If a publisher reports that a caption is covered, save a reference and update the relevant template instead of guessing an arbitrary new margin for all future work. Check cover and profile-grid crops separately from full-screen playback. A title can fit safely in the video while being cut off in a grid preview. The intended viewing context determines the check; a large editing monitor alone cannot provide it.
Keep captions accurate and deliver them deliberately
Specify whether the deliverable needs burned-in text, a clean master, a subtitle file or a combination. These are different assets. Burned-in captions control appearance but cannot be disabled; a subtitle track supports other viewing needs but may render differently across players. Agree which version the publisher should use and name it clearly.
Check wording, punctuation, line breaks and timing after any structural revision. A shortened pause can shift a caption into the wrong shot if the subtitle asset was not updated. Keep important meaning, including negation and qualifications, intact. Use a phone preview for size and contrast, and inspect interaction with the platform’s own captions. Duplicate text layers can create clutter even when each is individually readable. The specification sheet should state the caption language, version and whether automatic platform captions need review. Do not leave the publisher to infer those details from a filename that merely says “final.”
Export from a clean, destination-aware master
Preserve source quality and use progressive output when the delivery requires it. For YouTube, the official encoding guide recommends MP4, H.264, suitable audio encoding and the same frame rate as recorded. Consult its current tables for bitrate recommendations rather than treating one number as correct for all resolutions and frame rates. These YouTube recommendations do not become an OFTV requirement simply because both deliveries use a landscape file.
Build named presets for the destinations you actually serve, with a date and owner responsible for review. Keep audio rights separate from technical compatibility: a file can encode correctly and still contain an unauthorised soundtrack. Avoid repeatedly exporting and reimporting compressed versions when the original timeline is available. Review graphics, colour and audio in the final export, because the editing preview is not proof that encoding or processing produced the intended result. Retain the project settings in the delivery record so another editor can reproduce the output.
Verify file size through the delivery method
A platform’s maximum upload size and a hiring form’s attachment limit are unrelated. For an assessment, deliver review links as instructed. Do not try to compress a large production video into a small form field at the cost of unreadable captions and damaged audio. For client work, agree storage, access and expiry before uploading a batch of masters.
Use a delivery index that states filename, version, destination, dimensions, duration and caption/audio status. Add the approval owner and any remaining publishing check. Test the link using an account with the same level of access as the recipient. A file can exist in storage while still processing, requiring permission or opening an unrelated folder. Confirm the usable result rather than merely recording a successful upload. If the delivery method rejects the file, identify whether the problem is technical format, size, access or platform policy before changing export quality at random.
Maintain the sheet when requirements change
Give the specification sheet an owner and review date. Update it after a substantive platform change, a new publishing route or a confirmed delivery issue. Keep the previous version when it explains an older export. Avoid changing every preset in response to one uncertain upload failure; first reproduce the problem and confirm the relevant rule or interface behaviour.
The editor, publisher and manager should agree which checks happen at each step. The editor can verify the export; the publisher may be best placed to confirm the actual account preview and upload eligibility. A manager resolves scope and destination decisions. That division prevents a file from being labelled approved when an essential platform check is still pending. Keep uncertainty explicit, especially for OFTV requirements that were not supplied. A useful cheat sheet helps a team ask the right questions and reproduce a delivery, rather than giving false confidence through precise-looking numbers with no current source.
Sources and current platform requirements
Checked on 2026-10-20. Platform rules and submission requirements can change; follow the current official source for a live project. Workflow examples in this guide are editorial suggestions.
Questions about this editing task
Is 1080 × 1920 a universal platform requirement?
No. It is a practical vertical production starting point in this guide. Verify the actual destination’s current rules and the project brief before release.
Are all vertical videos YouTube Shorts?
Use the official Shorts eligibility guide for the upload date, aspect ratio and duration conditions. Do not infer classification from orientation alone.
What is the correct OFTV bitrate?
Confirm the current submission brief. This guide does not publish an unverified OFTV bitrate, duration ceiling or file-size limit.
Can one safe-zone template cover every platform?
Use it as a review aid, not a guarantee. Check actual previews, interface overlays and cover crops for the intended viewing surface.
Should I burn in every caption?
Follow the delivery brief. Some projects need burned-in text, others a subtitle track or clean master, and some need multiple labelled versions.
How do I deliver an assessment video?
Use the requested review links and verify access. A platform upload limit does not change a hiring form’s attachment limit or the assessment’s delivery instructions.
Related video editing guides
- Captions and subtitles for short-form creator videos
- Editing OFTV episodes: from footage to a finished story
- Music licensing and copyright for creator video editors
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