# Video to Vertical 9:16 — yeezhan.com
> One-time pay-per-task emergency tool to make your file ready for submission.
> No credits, no balance. One payment unlocks one task result, valid for 24 hours.

Tool domain: https://video-to-vertical.yeezhan.com
Skill definition: https://video-to-vertical.yeezhan.com/skill/SKILL.md
API documentation: https://video-to-vertical.yeezhan.com/api/docs

## What this tool does
Convert landscape videos to 1080×1920 vertical — blurred background fill, subject centered.

## Typical user problems
- Your landscape recording must become a 1080×1920 vertical clip. Stretching distorts; letterboxing wastes space. The professional look is subject centered with a blurred copy of itself filling the frame — exactly what we render.
- Shorts, Reels and TikTok demand 1080×1920. Letterboxed uploads look amateur — you need true vertical with a blurred fill, not stretched pixels.

## Parameters
- crf: enum, optional. 画质

## Pricing
- Watermarked preview: free, no login required
- Final clean output: $2.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max input 500 MB
- Output 1080×1920 MP4 (H.264+AAC)
- Blurred-fill background style