# Stamp PDF with Image — 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://pdf-stamp.yeezhan.com
Skill definition: https://pdf-stamp.yeezhan.com/skill/SKILL.md
API documentation: https://pdf-stamp.yeezhan.com/api/docs

## What this tool does
Put your company chop or signature PNG on selected pages — position, size and opacity included.

## Typical user problems
- Contracts and invoices need the company chop on page 1, or every page. Upload the PDF plus your stamp PNG and place it precisely — no Photoshop roundtrip.

## Parameters
- pages: string, optional. 盖章页. all 或 '1,3' / '2-5'
- position: enum, optional. 位置
- scale_pct: number (range 5-100%), optional. 图章宽度（页宽百分比）
- opacity: number (range 0.05-1), optional. 不透明度

## Pricing
- Watermarked preview: free, no login required
- Final clean output: $0.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max 200 MB
- One stamp image per pass
- Rides page content — it does not seep behind existing graphics