output empty pdf file without error

i olnly use the markdown-pdf command, the size of markdown file is more than 50k, i use command below:
```sh
markdown-pdf -p 'my phantomjs' ./test.md -o ./test.pdf
# with nothing output
```
and the output pdf is empty

System info:
- os: Ubuntu 20.04.2 LTS
- npm: 9.5.0
- node: v18.14.2

if you need my markdown pdf, please contact me, thx