To add your signature to Spark complete the following:
To add your signature to gmail complete the following:
Mac: Paste your signature into the Signature box (Ctrl+V or Command+V), click on the clipboard that popped-up and select Keep Source Formatting pasting option and press OK.
Windows: Right click the Edit Signature box and choose Keep Source Formatting pasting option and press OK.
Use Chrome or Mozilla browser when you click "copy to clipboard" button to keep right formatting.