add apps to Open With in context menu

Kappy wrote:
Select any PDF file then Press COMMAND-I to open the Get Info window. In the Open with section select Preview from the drop down menu then click on the Change all button. This will set Preview as the default for all PDF files.

V.K. wrote:

CyKi wrote:
is it possible for example to add Preview to "Open With.." menu when I right click on Folder?

preview can't open folders. it opens files. in general, you can't add anything to "Open with menu" by hand. the only way to force something to be there is to make it the default application for certain file type. this should already be the case with image files unless you've changed the default application to something other than Preview. to set a default application control-click on an image file and select 'get info". in the resulting popup go to "open with section and set it to open with the app of your choice. then click "change all".

Lastly, to quickly open all files in a given folder in preview drop that folder on Preview in the dock.

V.K. wrote:
yes, but you can't squeeze it into the "open with" menu. open with menu only understands direct object that an application can open. in case of preview that's image files, not folders. but if you want you can easily make a separate contextual menu item to the right-click menu called something like "open folder in Preview". then you can control-click on a folder and select this menu and it will be the same as dropping folder on Preview or using command+o. in Preview. would that be satisfactory? I can explain further if you want.

V.K. wrote:
set it to accept folders (or files and folders) and be available in finder.