Education.com, Coloring-Book.info, PrintActivities.com and HelloKids.com all have printable Hansel and Gretel coloring book pages. Files can be downloaded by right clicking on an image and selecting "Save As..." or by clicking "download file" when applicable.
There are many websites available dedicated to providing free resources for parents and teachers. Printable coloring books are available for free online, and can usually be downloaded directly from an easily accessible website. Because the resources were intended to be used by teachers and parents, there is no legal issue with using printed coloring pages in lesson plans. Education.com, Coloring-Book.info, PrintActivities.com and HelloKids.com all have downloadable resources. HelloKids.com also has the option of using their digital coloring book, allowing children to color their pictures online and saving on paper.
In order to download an image, right click on the image and select "Save As..." Some websites will provide a large group of images compressed into a zip file. In order to download and open a zip file, download the file as normal. Open your "Downloads" folder and locate the zip file. Double click to open on a Mac, or right click and select "Extract all" on a Windows machine. Once the file is unzipped, it can be opened and its content accessible to you as a user.
Move your new images to your "Photos" folder, or to your "My Documents" folder in order to keep your files organized. If need be, create a new folder to house your coloring book images.