Extremely Blurry Text with Anti-Alias set to smooth, 72 dpi for e-signature

Hello,

I'm using Photoshop 2015 and I'm trying to make an e-signature for email: 320 pixels wide, 100 pixels high, resolution set at 72 dpi which

is what is suggested. Anti-Alias is set to smooth and this is what my text is looking like. Even if I go up to 300dpi, it remains blurry.

Any suggestions?

Cheers,

Steven

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