Fax - What file formats are supported?
We support A4. All sheets will need to be in portrait orientation. You can still send landscape pages, they must be in portrait orientation though.
4 MB max. If you need larger files to be supported, please let us know.
Via the Dashboard or Email to Fax
If you need any more file types, please let us know.
Via the API
If you need to convert a file to a PDF, it can be first passed to our uploads endpoint: /uploads?convert=fax View Docs
This will return a URL to the converted pdf file that can be used in the /fax/send endpoint View Docs
Inbound fax will be converted to a PDF.