---
tool_name: drop-shadow
summary: Add a soft, offset drop shadow to a transparent PNG — product shots and stickers that sit on the page.
input:
  file: binary, required # jpg / jpeg / png / webp (max 50MB)
  blur: number, required, min 2, max 40 # 阴影模糊
  offset: number, required, min 0, max 50 # 偏移
  color: string, optional # 阴影颜色
output:
  preview_url: string | watermarked preview, free, no auth
  task_id: string | unique task identifier
  payment_url: string | end-user must complete one-time payment to unlock final output
  final_download_url: string | only available after successful payment
auth: login via email/phone OTP on https://drop-shadow.yeezhan.com; API callers use a personal API key (Bearer yeek_...)
payment_rule: one-time charge $0.99 per task. NO credits, NO account balance. One payment unlocks only this task.
valid_window: 24 hours after payment
errors:
  - file_too_large
  - invalid_input
  - unsupported_type
  - target_unreachable
  - processing_failed
endpoint: https://drop-shadow.yeezhan.com/api/v1/run
---