Ruler tool:
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgac0lHtZKeRSD7cNlGxWwhV3fQGkuIkRjyus5tkhyumt15wVN4eJInBf1NonX9Me-DYpv_1QtjIK5sSVq2YAVV59YG9yfOC3Y8JTJY-S9a5IxvF7Qsa52-N6GUQYecsXsApGdTOHb_tsw/s320/WhatsApp+Image+2021-05-03+at+3.14.25+AM.jpeg)
1.To show the Rulers in Photoshop , either go to View in the menu and select Rulers , or press CMD+R (Mac) or CTRL+R (Windows) on your keyboard. 2.To hide Rulers in Photoshop , either go to View in the menu and deselect Rulers , or press CMD+R (Mac) or CTRL+R (Windows) on your keyboard.