For

HR and marketing

Email signature photo size and format

Email signature photo size and format

Portrait of a young woman with long blond hair, background removed

Mara Jansen

People Ops · Aaavatar

Cursor

Export

1 portrait

Shape

Square

Circle

Rounded

Size

512px

1024px

2048px

Export

Portrait of a young woman with long blond hair, background removed

Mara Jansen

People Ops · Aaavatar

Cursor

Export

1 portrait

Shape

Square

Circle

Rounded

Size

512px

1024px

2048px

Export

Portrait of a young woman with long blond hair, background removed

Mara Jansen

People Ops · Aaavatar

Cursor

Export

1 portrait

Shape

Square

Circle

Rounded

Size

512px

1024px

2048px

Export

  • Mac app

  • Checkerboard pixel
  • free to start

  • Checkerboard pixel
  • one look for the whole team

  • Checkerboard pixel
  • export for LinkedIn, Slack and email

  • Checkerboard pixel

Same photo, one background

The photo you get.
The photo you need.

Original photo of a woman with short grey hair, taken in an office

A meeting room and a whiteboard behind her.

The same woman with the background removed, ready for a new background

Cleaned up and small enough to sit in every email.

Portrait of a young woman with long blond hair, background removed
Portrait of a man with dark curly hair, background removed
Portrait of a man with glasses, background removed
Portrait of a woman with short grey hair, background removed
Portrait of an older man with grey curly hair, background removed

And the rest of the team on the same background, the same crop, one export.

How it works

From a folder of random photos to one matching team, in four steps.

Drop photos

Drop in the photos

Put the whole team in one folder. Backgrounds are removed automatically.

Pick a background

Choose a preset, match your brand colour, or upload your own.

Fill in body

Retouch

Fix the framing

Fill in missing shoulders and align every face to the same crop.

Export

Export the set

One click exports every photo, at a size that works for LinkedIn, Slack and email.

Good to know

There is no official standard for a photo in an email signature. Every client renders signatures slightly differently, and a few strip images altogether. What works is a small, light file that still looks sharp on a high-resolution screen and does not disappear in dark mode.

100–150 px shown · export at 2× · under 50 KB

Keep the displayed size small. Somewhere around 100 to 150 pixels wide is normal. Bigger than that and the signature starts competing with the message.

Export at twice the display size. If the photo shows at 120 pixels, export it at 240. On a retina screen the smaller file looks visibly soft.

Watch the file weight. This image travels with every single email you send, and it lands in every reply in the thread. Under 50 KB is a reasonable target, and a portrait on a flat background compresses far better than one against a busy room.

Mind dark mode. Some clients invert or darken signature backgrounds. A portrait cut out onto a light neutral background survives that better than one with a dark rectangle behind it.

Be consistent across the team. Signatures are the one place where a whole company’s photos appear side by side in a customer’s inbox over time.

Uploading team member photos into Aaavatar

the app · for Mac

Aaavatar editor with a portrait cut out and framed in a circle
Aaavatar showing the Team Sky folder: ten portraits on one shared blue background
Aaavatar editor with the Effects panel open, showing Balloon, Windy, Sticker and Flowers
Aaavatar Export sheet: choose Square, Circle or Rounded and a size of 512, 1024 or 2048 px
Aaavatar editor with a portrait cut out and framed in a circle
Aaavatar showing the Team Sky folder: ten portraits on one shared blue background
Aaavatar editor with the Effects panel open, showing Balloon, Windy, Sticker and Flowers
Aaavatar Export sheet: choose Square, Circle or Rounded and a size of 512, 1024 or 2048 px
Aaavatar editor with a portrait cut out and framed in a circle
Aaavatar showing the Team Sky folder: ten portraits on one shared blue background
Aaavatar editor with the Effects panel open, showing Balloon, Windy, Sticker and Flowers
Aaavatar Export sheet: choose Square, Circle or Rounded and a size of 512, 1024 or 2048 px

Features used

Three features that do the work.

A stack of team photos being dropped into Aaavatar

Folders

Drop the whole team in one folder and edit them as a set.

Portrait of a young woman with long blond hair, background removed

Backgrounds

A preset, your brand colour or your own image, the same for everyone.

Portrait of a man with dark curly hair, background removed

Fill in body

⚡ 2

Filling in body…

Fill in body

Restore cut-off shoulders and align every face to the same crop.

FAQ

What size should a signature photo be?

PNG or JPEG?

Why does my photo look broken in some emails?

one look for the whole team

free to start · Mac app