# ID Card Merge (One Page) — 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://idcard-merge-onepage.yeezhan.com
Skill definition: https://idcard-merge-onepage.yeezhan.com/skill/SKILL.md
API documentation: https://idcard-merge-onepage.yeezhan.com/api/docs

## What this tool does
Put the front and back of an ID on one A4 PDF — stacked, 80% width, optionally headed with name and date.

## Typical user problems
- 办事窗口常要「正反面打印在同一页 A4」。两张图上下排、图宽 80%、整组垂直居中，可带姓名/日期文字，直接打印或上传。

## Parameters
- line1: string, optional. 页眉文字（如姓名）. 可选，如「张三」
- line2: string, optional. 页脚文字（如日期）. 可选，如「2026-09-11」

## 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
- 恰好 2 张图（正面 + 反面）
- 输出 A4 单页 PDF