: Ensure rulers are visible ( Ctrl + R or Cmd + R ) and click-drag from the horizontal or vertical ruler onto the canvas.
: Go to View > New Guide... to enter a specific pixel or percentage position. Jan11_01.jpg
: If guides still flicker or disappear, go to Preferences > General and select Reset Preferences on Quit , then restart the app. 3. Locking and Clearing : Ensure rulers are visible ( Ctrl +
: Ensure "Extras" are enabled under View > Extras ( Ctrl + H or Cmd + H ). (Windows) or Cmd +
: Use the shortcut Ctrl + ; (Windows) or Cmd + ; (Mac) to show or hide them.