With almost every new version, the Photoshop toolbar , the evolution of which can be traced in the figure below, was replenished with new buttons or underwent minor transformations for ease of use.
Each tool, just point to it with the cursor, will kindly “introduce itself”, highlighting the prompt, however, if you have a checkmark on the “Interface” tab in the “Settings” dialog box (in the “Edit” menu below) that allows “Show prompts "
Where are the rulers
A user beginning to comprehend the wisdom of a brilliant editor probably already has an idea of ​​the role of each tool, but it also happens that when there is a need, for example, in elementary alignment of an object on a canvas, we, not knowing how to turn on the ruler in Photoshop, touch the cursor in vain toolbar in the hope of "hearing" a hint.
The editor "Photoshop" would not be "Photoshop" if he could not offer any command to execute in different ways. This also applies to the Rulers command in the View menu, by selecting which we will “attach” the rulers in the work area above and to the left. If you are too lazy to drag the mouse to the menu, you can press Ctrl + R to call the rulers. They hide with the same combination.
Having figured out how to turn on the ruler in Photoshop, another user is faced with another problem, not knowing how to change the division scale.
Units and Guides
By default, we will be offered "centimeter" rulers, but by right-clicking on any ruler and in any place, you can select pixels, millimeters, inches, points, peaks (at the peak of 12 points) or percentages.
From both rulers, like from a magician’s sleeve, you can use the mouse to pull out an unlimited number of guide lines, which can also be called up using the "New Guide ..." command in the "View" menu. But if the rulers are not included, the guides will be fixed. Guides do not tolerate Ctrl + H shortcuts and instantly disappear.
Measuring ruler with protractor
On the toolbar, under the "Eyedropper" button, the "namesake" of the coordinate rulers hiding the work area is hidden. The Ruler tool in Photoshop is used to determine the coordinates of the starting point of the measured segment, measure the width and height of the object, the length of the line, and calculate the angle of inclination.
By clicking on the desired point, without releasing the key, pull it out like a tape measure measuring a line, following its parameters in the settings panel at the top. When you click again, a new line is stretched, and the previous one disappears. The line (ruler) can be dragged and twisted, holding the mouse both at the crosses at both ends and the line itself.
In the settings panel at the top, X and Y are the coordinates of the starting point, W and H are the width (horizontal distance) and height relative to the starting point, Y is the angle relative to the centerline, and L1 is the length of the segment between two points.
If, by pressing Alt, move the cursor to the cross of the starting point, it will take the form of a protractor, indicating that you can draw a line at an angle to the stretched ruler, and this angle will be determined (L2) in the settings panel.
The cursor above the "On the scale of measurements" button does not give everyone a clear hint "Calculate the data of the Ruler tool on the scale of measurements." By ticking this function, we confirm the use of the ruler unit selected in the settings (Edit> Preferences> Units and rulers).
You can also select the units of measurement in the panel options on the Info panel by clicking on the small triangle in the upper right corner.
As already noted, all the tools in Photoshop can be opened in two, or even three ways. In this sense, our roulette is not deprived of attention, since you can turn on the ruler in Photoshop by pressing and holding Shift + I until the ruler icon appears on the button of the Eyedropper tool. In the same way, the ruler will hide by replacing the button with the icon of the "Comment" tool next to it, or remove it with the "Delete" button on the far right of the settings panel.
How to align on a ruler
The ruler can also be used to straighten the image. To do this, you need to stretch the ruler in the picture, indicating the straightening horizon for it, and click the "Align layer" button with the prompt "Align the active layer to create the ruler level". In this case, you will sacrifice portions of the image that have gone beyond the boundaries of the document (Photoshop will crop them), but if you “Align the layer” with the Alt key pressed, everything will remain in place, as you will see by increasing the canvas (Image> Canvas Size) , or by turning on Move, drag the hidden parts into view.
In CS6, everything is still
As it upgraded, Photoshop was gradually enriched with new features and capabilities, but there was no such sharp, high-quality leap as the transition from CS5 to CS6 (27 points of change) throughout the entire history of the program. However, the answer to the question of how to enable the line in Photoshop CS6 remained unchanged. The same checkmark in the “Rulers” line of the “View” menu, the same combination of Ctrl + R, and in the same way, you can click on the square in the upper left (where the lines converge) and drag down to select a new reference point in the image. Where we release the mouse button, the zeros of both rulers will be in that place, and you can return them “to their homeland” by double-clicking on the same square in the upper left corner.
And in conclusion - about one rare, but still happening misunderstanding. Another user, having started the editor, begins to “lay out the tools”, trying to get the rulers, but none will be executed, since you can only turn on the ruler in Photoshop, like all other tools, by first opening or creating a document.