# PDF Page Size Converter — 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-page-size.yeezhan.com
Skill definition: https://pdf-page-size.yeezhan.com/skill/SKILL.md
API documentation: https://pdf-page-size.yeezhan.com/api/docs

## What this tool does
Convert PDF pages between A4, Letter, Legal and A3 — content scaled to fit, never cropped.

## Typical user problems
- Cross-border document requirements are unforgiving: US systems want Letter, everyone else wants A4. Printing across sizes shifts margins and cuts content — you need the pages rebuilt properly, once.
- US-made documents are Letter; international systems demand A4. Direct printing scales with wrong margins — you need the pages rebuilt on true A4 with content centered.
- US immigration and court e-filing systems require Letter-size PDFs. Your A4 document must land on Letter paper without content loss.

## Parameters
- target: enum, required. 目标页面尺寸
- orientation: enum, optional. 方向

## 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 input 200 MB
- A4 / Letter / Legal / A3 targets
- Content is scaled to fit — very large aspect-ratio mismatches add wider margins