Caption Safe-Area Geometry
Check supplied caption boxes against a customer-defined pixel safe rectangle and report exact outside-safe and outside-frame areas.
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How to use Caption Safe-Area Geometry
Translate a client’s approved caption-safe rectangle into an inspectable geometry review before a video handoff. You define the rectangle; the tool does not invent platform layout rules.
- Enter the actual frame size and the safe rectangle approved for this delivery.
- Measure each caption box and enter its pixel position and dimensions in the CSV.
- Review the exact outside-safe and outside-frame areas, reposition the real captions, and export the review for a visual check.
Good to know
- Touching the safe boundary fits. The entered safe rectangle itself must lie inside the frame. No built-in social-platform specification is assumed.
- No video, font rendering, line wrapping, animation, OCR or subtitle file is inspected or changed.
- Exact displayed CSV headers; at most100 data rows and8,000 UTF-16 characters per input. Plain decimals have at most9 fractional places; display rounds half-up to12 places. Unknown evidence stays unknown. CSV exports preserve summaries, settings, every calculated detail/finding, limitations and scoped input records; spreadsheet-like text is apostrophe-prefixed.
- Browser-local supplied-record review. No AI, network requests, provider connection, file upload, stored input or automatic delivery. Use neutral identifiers instead of personal information or secrets.
Explore a related business case
These cases explain the business mechanism. The workbench is ToolJovia's independent adaptation, not a claim about the company's internal workflow or an endorsement.
Common questions
Is this a platform compliance checker?
No. It checks the customer-defined rectangle you enter. Verify the actual distribution requirements and the rendered video independently.
Why report area rather than just a warning?
The exact outside area distinguishes a small coordinate error from a caption largely outside the approved region.
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