Printing Large Painting

Hi.  I'm completing my first project on CPE 4.  I want the final print to be 18" x 24", but I don't know what dpi will give me the best quality.  When I go to resize for printing and enter the dimensions I need, the dpi drops from 270 to 240.  I didn't think either of these was adequate for high quality printing.  Should I use "unconstrained" and type the size I need and then manually adjust to a suggested dpi (by the way, I don't know that either).

All I know is I need the highest detail and quality possible for an 18 x 24 print.  Thanks in advance for any advice!

  •  I've only done it once, had a 20"x30"canvas wrap printed using a image taken with a 3.1 mp point and shoot, I used the full rez file and the pro printer resized it to fit. The pro printers today can do wonders with upsizing. Try contacting the company who will be making your print and ask for their requirements. By the way, the canvas wrap looks great! Good luck.

  •  Well, the problem is I want it done on a special fine art paper that I've only been able to find at Kinko's.  Several other print companies have no idea the type paper that I'm talking about.  Kinko's has a huge printer; I've seen several of their posters and they are crystal clear.  So how do I find out what the max rez would be and how do I change it?

  •  for the reproduction of photography and inherent photographic detail, resolution is important when saving a file, my preferred setting is 300dpi,for normal photographs, and 600dpi for extremely sharp and detailed ones, but for artwork resolution is not that critical for raster artwork, but very critical for vector based artwork. If you are merely printing a painting done using painter essentials onto special paper you have chosen, a large print is viewed from at least arms length and possibly the other end of a room, people will be looking at your art using their eyes, not a magnifying glass. Just supply Kinko's with as large a file as you can provide, if you are converting photographs from your camera into art shoot at maximum resolution to give yourself a fighting chance, and even if the shot you want printed was not taken at maxres all is not lost - there is always a utility which used to be called Genuine Fractals which is now renamed Perfect Resize 7, and it remains the industry standard for enlarging and resizing images. It is renowned across the photographic and printing industries for its ability to increase image size without the loss of sharpness or detail that you might normally expect. If Kinko's don't have that utility I do and I will gladly prepare your image for print - all you need do is contact me by e-mail