Hello, I'm relatively new to using illustrator and im trying to change the dpi of a drawing. One of my frinds made a T-shirt design in a non adobe software pragram, forget it know, and acsidently draw it at a 100 dpi file and looks blured when changed to a 185x185 pixle size. Can I take that file and change it to 300 dpi?
Go to effects>
Document Raster Effects>
and select dpi quality
I've already done that and it doesn't look like it did anything.
Does it need to be redrawn?
Ps - forgive me if its already been asked.
I'm running cs6
Illustrator does not alter the ppi of embedded or linked raster images. Illustrator is not a pixel-level editing application.
For pixel editing, you need a raster-based application such as Photoshop. And in a raster based application, you can't merely change the ppi of an image from 100ppi to 300ppi and have a quality image. In most cases, increasing the ppi of an image will lose detail due to interpolation. Some images suffer more from this than others.