changing the ppi (or dpi)

just like the title states. i know how to change the overal image size (image>adjust image size). but inside that dialogue box, i don't see anything pertaining to ppi (or dpi) adjustment. so i am sure that it isn't in that dialogue box.

can someone please teach my how to change the image's ppi (before i print)?

inside Image>Image size DPI is called "resolution"

thanks for the help lion of judah; it was exactly what i was looking for.

i ask the ppi question for a reason, quite a big reason at that. i am working on a project, and no, it is not a personal print for my grandmother, but rather my first piece that i will submit to be judged by the pro's at a local art show. as you can imagine i am definitely anxious, excited, and everything in between that makes my stomach turn upside down. perfection is my middle name; everything that has my name on it has to be pefect from beginning to end.

like i said, this is my first print... for professional critisism, that is, so all i want is pefection. and as you might know, printing and framing can be fairly expensive at times. so i want to get this right, right on the first time and not the fifth.

so the help i need pertains to: my finished project is width:1080 height:1384 with 180 resolution (ppi). the document size (if it matters or not) is width:6 height:7.689. i really want the picture to have the greatest amount of ppi as possible. the frame size i am looking to put the finished piece in is either a 9x12 or a 11x14, both will have frame with mat.

what all do i need to do to get this accomplished with professional results? please help; i have very little time left until the entry date.

What you need in dpi is reflective from how exactly you are going to pproduce the print. Commercial printer? Ink jet? Laser?

In commercial printing, most printers ask for a minimum of 1.414 X the linescreen that will be used. ie... If the print will be produced with a 175 linescreen 175 X 1.414 = 247.45 (250) (some however will ask for twice the resolution or Linescreen X 2). Printing thru a RIP (raster image processor) to an imagesetter anything more will be trashed down to needed resolution anyway, anything less will be interpolated by the rip producing pixelation in the image.

Printing with Inkjets, or color lasers as a general rule I stay at 225 DPI to insure the printer has all the resolution it needs to produce the print. The last thing you want is the "printer" trying to interpolate.