In case you want to quickly grab all pictures from your favorite tumblr blog do the following:
- Go here and grab the program GetTumblrPic.
- Open it and enter the Tumblr blog Name, get the list of images from the folder where the program was saved.
- Download “Internet Download Manager from CNET, once installed paste all the image urls there and save them to your computer
SOURCE: Download All Pictures from a Tumblr Blog.