When I drag my mouse through a ruler to create a new guide, I want this guide to move pixel by pixel so that when I leave it, it will have snapped to a side of a pixel instead of staying in the middle.
How can I achieve this?
You need to be at 500% zoom or higher and then hold Shift+Mouse Button to have your guides snap to the pixel grid.
Otherwise, by default it'll snap to:
- every 2 pixels at greater than 100% zoom
- every 5 pixels at 100% zoom
- every 10 pixels at less than 100% zoom
However, if you set your grid to every pixel, then it should snap to the pixel at 100% zoom or greater, even if
Grid isn't enabled. At zooms less than 100%, you'll need
Grid as well as have the grid enabled.
But I usually just use the rectangular marquee to mark out the positions where I want my guides to snap to. This avoids having to zoom in or having to change my grid settings.