Image library

Upload, organize, edit, and manage images used across your email signatures.

The Image Library is a shared asset manager for all images used in your signatures — logos, banners, profile pictures, and more. Open it by clicking Update image in the styling panel when an image block is selected.

Uploading images

You can add images to the library in three ways:

• Drag and drop a file directly into the upload area
• Select File to browse your computer
• Import from an external source — Canvas, Dropbox, Google Drive, OneDrive, Box, or SharePoint

Supported formats are JPEG, PNG, and GIF, with a maximum file size of 5 MB. Images are automatically resized to fit your signature — you can fine-tune dimensions later in the styling panel.

For logos and icons, use PNG with a transparent background. This ensures your image looks clean regardless of the email client’s background color.

Organizing with folders

The left sidebar shows your folder structure. Use folders to keep assets organized — for example, separate folders for logos, banners, and campaign images.

• Click the + next to “Folders” to create a new folder
• Click the pencil icon on a folder to rename it
• Click the trash icon to delete a folder
• Folders can be nested — use the + on an existing folder to create a subfolder

Click a folder to browse its contents. Use the ← Root link to navigate back to the top level.

Browsing and finding images

Once you have images in the library, the browsing toolbar helps you find what you need:

• View mode — Toggle between grid view (thumbnails) and list view (compact rows with details)
• Sort — Order images by Date (newest or oldest first), Name, or Size
• Filter By — Narrow results by file type: JPEG, PNG, or GIF
• Search — Type in the search bar to find images by name

Image details and selection

Click an image to open its detail view. Here you can see:

• A large preview of the image
• Image details — name, dimensions, file size, upload date, creation date, and file type
• Light / dark mode toggle — Preview how the image looks on light and dark backgrounds

From this view, you have three actions:

• Select — Use this image in your signature block
• Edit image — Open the image editor (see below)
• Delete — Remove the image from the library

Editing images

Click Edit image to open the built-in editor, which offers two tools:

• Auto Crop — Automatically trims whitespace or empty areas around your image. Useful for cleaning up logos that have extra padding.
• Remove Background — Strips the background from your image, leaving only the foreground subject. Great for product images or headshots that need a transparent background.

You can also manually crop by dragging the blue handles to define the area you want to keep.

Click Save to apply your edits, or Cancel to discard them.

Dark mode images

Email clients that support dark mode can invert or alter how images display. The Image Library lets you upload a separate dark mode version of any image so your signature looks polished in both modes.

When viewing an image’s detail, toggle to the dark mode tab (moon icon). If no dark mode version exists, you’ll see a prompt to Link Dark Mode Image. Click it to upload or select an alternate version — for example, a white logo variant for dark backgrounds.

If you don’t upload a dark mode image, the original (light mode) version is used everywhere. This works fine for photos, but logos with dark colors on a transparent background can become invisible in dark mode.