# wkhtmltopdf
> An open-source command-line tool to convert HTML documents or web pages into PDF files.
> More information: .
- Convert a HTML document into PDF:
`wkhtmltopdf {{input.html}} {{output.pdf}}`
- Specify the PDF page size (please see `PaperSize` of `QPrinter` for supported sizes):
`wkhtmltopdf --page-size {{A4}} {{input.html}} {{output.pdf}}`
- Set the PDF page margins:
`wkhtmltopdf --margin-{{top|bottom|left|right}} {{10mm}} {{input.html}} {{output.pdf}}`
- Set the PDF page orientation:
`wkhtmltopdf --orientation {{Landscape|Portrait}} {{input.html}} {{output.pdf}}`
- Generate a greyscale version of the PDF document:
`wkhtmltopdf --grayscale {{input.html}} {{output.pdf}}`