Each image or illustration included in the National Cancer Institute (NCI)Visuals Online Web site is labeled either "Public Domain" (free to use) or "Copyright Protected" (restricted, obtain permission before use). Most of the images available in this library are in the public domain and are not subject to copyright restrictions. No special permission is required to use or reproduce public domain images. However, ANY reproduced images should acknowledge NCI as the originator, the NCI Web site, www.cancer.gov, as the source and/or the image creator.
The National Institute of Mental Health (NIMH) Image Library is a searchable database of photographs and illustrations that are available, copyright free, to the public at no cost. The Library contains images of general biomedical research and research tools, mental health specific research, and treatment related images. Many images are available in low, medium, and high resolutions.
Much of the information critical to the communication of public health messages is pictorial rather than text-based. Created by a Working Group at the Centers for Disease Control and Prevention (CDC), the PHIL offers an organized, universal electronic gateway to CDC's pictures. We welcome public health professionals, the media, laboratory scientists, educators, students, and the worldwide public to use this material for reference, teaching, presentation, and public health messages. The content is organized into hierarchical categories of people, places, and science, and is presented as single images, image sets, and multimedia files.
Images include: Scientific Images, Brain Images, Neurons, and Alzheimer’s Disease Mechanisms and Processes The medical illustration images may be downloaded in high resolution (300 dpi, suitable for print) or low resolution (72 dpi, suitable for computer displays), both in JPEG format. Please include a credit such as “Image courtesy of the National Institute on Aging/National Institutes of Health” if you use these images in print or electronic materials.
Some of these photos are in the public domain or U.S. government works and may be used without permission or fee. However, some images may be protected by license or copyright. You should read the disclaimers on each site before using these images. If you have questions about the copyright status of an image, please contact the government agency that produced the image.
USP Pictograms are standardized graphic images that help convey medication instructions, precautions, and/or warnings to patients and consumers. Pictograms are particularly helpful in passing on important information to patients with a lower level reading ability and patients for whom English is a second language. USP offers 81 pictograms in .gif or .eps format. You can download the entire pictogram library after accepting their license agreement.