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Hi, i've done pic 1 several months ago and i remember at the time it was easy to make the rectangular using cm as measurement unit, but now i'm trying to make another rectangular and for the life of me i just couldn't make the same properties page as the same as before (pic 2). Can someone kindly teach me please, thanks.
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To change the measurement unit of Rulers to centimeters, press Ctrl + R to display the Rulers. Then, right-click on the ruler and select 'Centimeters'. To hide the ruler after changing the units, press Ctrl + R again.
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In addition, you can also right-click in the width and height field in the Properties panel and change the unit of measure without changing the main ruler units for the doc. Keep in mind that Photoshop works in pixels as the native unit, so depending on the document resolution some rounding of values may occur when translating metric to pixels which are based on 1/72 inch.
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i did as you said and then when i clicked on the rectangle again, it changes to px again...
when i edit pic 1, even if i keep clicking the rectangle, the properties layout still stays the same, the cm is still cm, it won't change to px, hence if you know how to directly change the whole properties layout to the one in pic1, please teach me, thanks again..
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Thank you for your reply, i'm terribly sorry if i worded too vaguely, but what i wanted to ask -- in a nutshell is, i don't want the properties layout as shown in pic 2 (bcs it's very inconvenient), i want it to be the properties layout as pic 1. But i really have no idea how to change it. If you know please kindly teach me, Thanks again.
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You can try changing the unit of measurement in Preferences or the Info panel.
https://helpx.adobe.com/photoshop/using/rulers.html
Double-click a ruler.
(Windows) Choose Edit > Preferences > Units & Rulers, or right-click the ruler and then choose a new unit from the context menu.
(Mac OS) Choose Photoshop > Preferences > Units & Rulers, or Control-click the ruler and then choose a new unit from the context menu.
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Based on my testing, changing units as @Stephen_A_Marsh suggests results in the Properties panel displaying centimeters for all new documents, even after restarting and relaunching Photoshop.
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I like to box the shape I need with guides.
Drag a pair of guides to intersect at the top left corner, and drag the grid zero, zero point to the intersection (it will snap into position).
Create new guides for the width and height. The New Guide dialog values reflect whatever unit you have set the rulers to.
Drag the shape or selection to fit the guides. Either will snap perfectly into position.