Why does my signature appear small on mobile devices?
Overview
Section titled “Overview”Your signature can appear small on mobile devices because of differences in screen size and resolution, and in how each email client scales email. To make your signature display correctly on all devices, optimize it for mobile.
Best practices for mobile-friendly signatures
Section titled “Best practices for mobile-friendly signatures”A signature built for mobile keeps your branding consistent and easy to read. Follow these guidelines.
Keep the signature narrow
Section titled “Keep the signature narrow”Most mobile devices use a vertical (portrait) layout. A wide signature can cause horizontal scrolling or a distorted layout.
- Keep the signature between 300 and 500 pixels wide for the best results.
- Up to 600 pixels can still work in most modern email clients. Always test on several devices.
Size images before you add them
Section titled “Size images before you add them”Images have a large effect on how your signature displays and loads on mobile.
- Resize images before you embed them. Don’t use HTML or CSS to scale down large files.
- Use optimized image formats, such as PNG or JPEG, to reduce load time.
- Make images responsive, so that they adjust automatically on smaller screens.
Let text wrap
Section titled “Let text wrap”Long lines of text, such as addresses or disclaimers, can cause layout issues on small screens.
- Let text wrap naturally instead of forcing it onto one line.
- Break long text, such as an address, across several lines.
- Avoid layouts that depend on a wide screen.
What’s next
Section titled “What’s next”- What is the recommended size for banners?: banner dimensions that match your signature width.
- Signature management and deployment FAQ: answers to other common signature questions.