Image Effects


Postbox contains a number of image effects that will help you create beautiful messages and newsletters. For example, you can select one more images and apply the following photo effects:

Clockwise from upper left: normal, grayscale, equalize, sepia, vintage, retro

How To Use

To apply an effect, simply right-click an image within the message body, and select Modify Image or Modify Selected Images from the pop-up menu, then select an effect. To disable an effect, simply select it again.

Overview of What's New

Scaling – In addition to Large, Medium, and Small scaling, we're also providing percentage scaling. Supported percentages are 200%, 150%, 100%, 75%, 50% and 25%.

Float – Align the image to the left or the right. Float also allows your text to wrap around the image.

Margin – Add 10px, 20px, 30px, or 40px of margin on all four sides of an image. Of course, you can always jump into HTML edit mode to fine tune these settings if, for example, you wish to have a margin on only one side.

Flip – Horizontally or vertically.

Rotate – Clockwise in 90, 180, or 270 degrees.

Effects – Equalize, Greyscale, Retro, Sepia, Solarize, Vintage.

Frames – 11 different frame effects for you to enjoy.

Shadow – Adds a soft shadow around the image.


Please note that Image Effects will not operate on images that are base64 encoded or attached using an IMAP URL. This usually happens when:

  • pasting an image into the compose window
  • images within draft messages are reopened
  • images are dragged and dropped from the Compose sidebar
Was this article helpful?
0 out of 3 found this helpful