How can I find the center of a layer in Photoshop?

The following script will find the horizontal and vertical centre of the active layer. It will add guides and a colour sampler to the centre and also report the co-ordinates via a window. It should be simple enough to alter as required:

//community.adobe.com/t5/Photoshop/How-can-I-find-the-center-of-a-layer-in-Photoshop/td-p/10661864
// How can I find the center of a layer in Photoshop?

#target photoshop;

var savedRuler = app.preferences.rulerUnits;        
app.preferences.rulerUnits = Units.PIXELS;

var doc = activeDocument;
var layerBounds = doc.activeLayer.bounds
var hor = layerBounds[2]-layerBounds[0];
var ver = layerBounds[3]-layerBounds[1];
var hCentre = hor/2+layerBounds[0];
var vCentre = ver/2+layerBounds[1];

// Add horizontal guide
doc.guides.add(Direction.HORIZONTAL, vCentre);
// Add vertical guide
doc.guides.add(Direction.VERTICAL, hCentre); 

// Add colour sampler to centre of layer
doc.colorSamplers.add([hCentre, vCentre]); 

// Report the co-ordinates in pixels
alert('Active Layer Centre Point' + '\n' + 'X: ' + hCentre + '\n' + 'Y: ' + vCentre);

app.preferences.rulerUnits = savedRuler;    

//doc.colorSamplers.removeAll();
//doc.guides.removeAll();

Jeff, the trouble is now that if you use transform to place guides, you have the move tool selected and you have to hold the shift key, when you start, but let it up once you start dragging, or the guide will disappear when you quit the transform.

Do you have snap turned on?

Hi There,

Thanks for reaching out the Adobe Community!

As you're looking to find the horizontal center point of a Layer in Photoshop, would suggest you to update Photoshop to version 20.0.6 which is the most recent update and let us know if it helps.

Also, you may have a look here and see how it goes: https://helpx.adobe.com/in/photoshop/using/aligning-layers.html

Regards,
Sahil