Convert dot to pnm Online: dot2pnm

You can use Tom's Editor to easily convert images from
Graph Visualization .DOT to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

DOT

Graph Visualization is an image format with extension DOT.

PNM

PNM images are uncompressed 24 bit RGB images. Can cannot store Alpha channel. PNM images come in 2 types: binary and text. Especially popular on Linux.