We had to opt out from Mattermost boards because of this missing feature. Shame because this is such a simple one to implement.

As web developers we have lots of minor UI issues that we want to track and fix using the boards and the screenshots are essential in this process.

We need the ability to quickly preview the full image, downloading and opening separately is not acceptable. Also I don't even see the option to download when the image is posted as a comment to the ticket.

Still no update?

still no update?

how is this still not added?... even the app I use to submit expenses at work lets me click on the receipt image to see it larger and its not meant to be an image sharing app. huge nuisance to have to download the image to view it.

The screenshot was taken on a high resolution screen. After that, at normal resolution it is impossible to see anything in the screenshot until you download the picture and open it in a “photo viewer”. When will you add a slider to increase the size of pictures like in slack? The first mention (not mine) of this problem dates back to May 2018: https://forum.mattermost.com/t/show-pictures-in-original-size/4996 second
https://forum.mattermost.com/t/cannot-zoom-images/7288

Still no update?

any update?

We are having similar issues. Would love this feature

It would be great to be able to zoom in or see images full screen that are posted to a MM channel. As it is, our team often has to download the image and then open it in an image viewer that supports zooming in to see the image content. This is cumbersome and adds extra steps to an otherwise simple task: viewing an image sent via MM.

Our team need this improvement also.When we discuss some game screenshots and big design graphs,the default zoom is too small on screen.we have to :

1. Click Download
2. Open on system
3. Back to discussion

What we need are:

1. Click the pic
2. Shows full size picture
3. Click anywhere
4. Back to discussion

Any update here?