Using retina images in your email signature

It's only possible to use retina images with a small number of email clients. Email Signature Rescue now supports the use of retina images however please keep in mind that yours or your recipient's mail client may not.

To upload retina compatible images into your signature, please follow How to resolve large and blurry images on retina and hi-res devices.

Are your images appearing a little fuzzy or low quality?

If your images aren't quite as crisp as you would like them to appear, here's some things you can try:

1. Upload your images in 300 DPI. Whilst 72 DPI is the standard resolution for monitors, you will find that uploading your images in 300 DPI can resolve clarity issues. 300 DPI has generally been used for print works in the past however is becoming more useful in the digital world now that devices are using higher quality displays.

2. Images should be in RGB format not CMYK. CMYK is used for printing, RGB is used for viewing on computer screens.

3. If using Outlook 2007, Outlook 2010 or Outlook 2013, watch our video on installing your signature using the Advanced Method here. This fixes the quality of all images in your email signature and explains why the image quality is low, if installing your signature just using copy and paste.

4. Ensure that your Windows settings in Control Panel > Display > Text Size are set to 100%. If it's set to either 125% or 150%, this can also affect the size and quality of the images you send.
Note: If you're using an Ultra HD device like a Surface Pro then you will find 150% or 200% is necessary. See this article for further help if using one of these devices.

Email clients that strip out the head of your HTML signature