Translate a PDF document end-to-end: extract structured Markdown from the source PDF, translate the content, and build a new PDF in the target language.

Usage:

/translate-pdf ./report.pdf French English — Translate a French PDF to English
/translate-pdf /path/to/manual.pdf English Spanish — Translate an English PDF to Spanish
/translate-pdf invoice.pdf German French — Translate a German PDF to French

Instructions:

Parse positional arguments:
- $1 = path to the source PDF file
- $2 = the language the PDF is currently written in
- $3 = the language to translate into
- If any of $1, $2, or $3 is missing, display the following and STOP:
```
## Missing Arguments

Usage: /translate-pdf <path-to-pdf> <source-language> <target-language>
```

translate-pdf