how to get files to open on the monitor Im using?

[macgig]

I have pdf files on the big HP monitor that is my main monitor, but they open on the smaller imac monitor. why? how do I fix this? thanks.

 

[Raz0rEdge]

You are opening the files in Preview or other PDF viewer? Can you not drag that window to the monitor if your choice?

 

[macgig]

using preview. I can drag it, I thought there may be a setting to make it open in a certain monitor? I'm not aware of such a setting.

 

[Raz0rEdge]

Yes, there is a way of making it open on a specific monitor if you want that application to always open on that monitor.

Open a PDF, any PDF, and once Preview is opened, right-click on it's icon in the Dock. Select Options and under the Assign To section, choose which display you want to assign Preview to.

Now, every time you launch Preview by itself or through a file it can load, it will automatically jump to the display you've chosen. If you have multiple spaces on your displays, one you select a specific display, it will automatically chose the space as well and always jump to that space & display.