When I create two artboards in the same file, Image resize selects all dartboards and resizes them a

[cje.churchill]

Create two artboards in a file.

place an image on each artboard

select one image and go image>image size

It selects the images on both artboards instead on the single imagine originally selcted and treat both artboards as if it were one big image.

[CShubert]

Hi @cje.churchill are you working with the latest Ps Beta?

Adobe Photoshop Version: 26.9.0 20250608.m.3101 26135db arm64

1. Try resetting Prefs for the Beta:
/Users/yourname/Library/Preferences/ Photoshop Beta Settings (Mac Ventura)
/Users/yourname/Library/Preferences/Adobe\ Photoshop\ \(Beta\)\ Settings (Mac)


C:\Users\user name\AppData\Roaming\Adobe\Adobe Photoshop (Beta)\Adobe Photoshop (Beta) Settings

Launch BETA Photoshop While Pressing The Keyboard Shortcut
With Photoshop closed, press and hold Shift+Ctrl+Alt (Win) / Shift+Command+Option (Mac) on your keyboard and then Launch Photoshop the way you normally would.
https://helpx.adobe.com/photoshop/using/preferences.html#Manually 

2. It may help if we could see your Photoshop beta System Info. Launch Photoshop beta, and select Help >System Info...and copy/paste the text in a reply.  

Thanks,

Cory - Photoshop Product Manager

[ChristopherButler · Accepted solution]

Hi @cje.churchill - From a Feature Implementation standpoint, this behavior is expected, although it may not be useful. It's also clearly not what you expected when working with Artboards. Arguably we should disable that command for Artboard documents.

Currently the command image > Image size will take ALL layers in the document and scale then, not just the selected layers. It's really intended to be used when working with whole document image data rather than object data. And you typically only do it once or twice. Design documents with Object layers like text, shapes and so on, have suboptimal results when scaled with Image Size. Yes, sometime the right things happen, but the results almost always do damage to the individual Layers as they are resized. Resize enough times, and the image quality will noticably degrade.

The better technique for resizing Artboard content is to convert the content to one or more Smart Objects, then scale the resulting Smart Objects as desired. This is non-destructive and will have superior results.