So one of the big issues I have with Pixlr, is that I can't see the dots per inch.
I found this article that really makes me frown.
You need to create something to a very detailed specification (sized to spec)
If you've spoken to a printer about making a t-shirt and they want you to deliver a 300dpi file in an uncompressed format, you might be able to use our tools to do it. It depends on the quality of the file you begin with. (Ultimately, it's really all about the pixels, not about the DPI. Check out this article, The Myth of DPI, if you want to delve into the subject a bit more.) If you're starting with a very large image, you can edit it in Pixlr Desktop or Pixlr Editor for the web and save it out as an uncompressed TIFF. Be aware, though, that our apps aren't really designed for professional graphic designers who might need very fine-grained tools to meet very detailed specifications. For example, our apps aren't designed for CMYK output. That said, Pixlr Editor contains many graphic design tools that will work just fine for you, and Pixlr for Mac and PC can handle large, high resolution files.
The bottom line:
I am at teacher with Stokes County Schools.