why do shapes of objects change when I use Outline in Pathfinder? How do I prevent this

[A Bit Orange]

When I have two or more shapes and I use outline in the pathfinder, the shapes change and I have to redraw objects with the new shapes. How do I prevent this?

[Ton Frederiks]

Please give more details about the way it changes and show some examples (before/after).

[A Bit Orange]

TheThevPPhto

[A Bit Orange]

In the first photo I place a circle over the horizontal lines. Used "outline" in pathfinder. When I place the same circle in place, the outline is slightly off than the one created by the pathfinder.

[Ton Frederiks]

Does changing the Precision value in the Pathfinder panel menu make a difference?

[Ton Frederiks]

It does, setting the precision to 0,001 pt solves your problem.

[Met1]

is it off by the thickness of your stroke?

[Mike_Gondek]

What OS & AI version are you running? The only reason for thsi in the past would be if you changed the default settings of Pathfinder flyout menu >> pathfinder options.

Lately the Adobe release versions & the OS have not been as stable. Try doing this without GPU preview. Command E to toggle on Mac.