A quick view of the Adobe Photoshop working canvas may be overwhelming, with palettes, tool bars, buttons and menus taking up just about all the space that the main work area does not. But placed in a small area between the canvas and the surrounding tools are two small but helpful options -- rulers. Use rulers to find the centre of your Photoshop page or to place additional design elements square in the middle of an existing document.
- Skill level:
- Moderately Easy
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Open Photoshop. Click the "File" menu. Click "Open." Browse to the document to which you wish to add a ruler and double-click its file name. When the image opens in the Photoshop workspace, click the "View" menu and select "Fit on Screen" to show the entire image.
Review the canvas to check whether Photoshop's rulers are already in place. If you do not see them running across the top and left sides of the canvas, click the "View" menu and click "Rulers."
Pull down the "Image" menu and click "Image Size" to review the picture's dimensions, such as 4 inches by 6 inches. Click "OK" to close the window.
Click anywhere on the white horizontal ruler running across the top of the screen. Drag the cursor down and a green guide appears. Drag the guide to the halfway point on the picture, such as the 2-inch mark on the vertical ruler for a 4-inch high document. This now marks the centre of the page.
Click anywhere on the white vertical ruler running down the left of the screen. Drag the cursor to the right and a green guide appears. Drag the guide to the halfway point on the picture, such as the 3-inch mark on the horizontal ruler for a 6-inch high document. This now marks the centre of the page, crisscrossing with the other ruler.
Add an image of a ruler to the centre of the page by clicking the "File" menu, clicking "Open," locating a picture of a ruler and double-clicking it. Click the "Select" menu, click "All" and press the "Ctrl" and "C" keys to copy it. Click back to the first image. Press the "Ctrl" and "V" keys to paste in the ruler. Drag it into place on the ruler guidelines in the middle of the image.
Tips and warnings
- These steps may be performed on a new Photoshop document as well. Open the software, click "File" and select "New." Set up the image canvas per your preferences and then follow these instructions.
- The Photoshop rulers stretching across the canvas themselves are not movable, which is why the software offers the guides option, the ideal way to judge the centre of the document.
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