Preservation & Conservation

AIC: Caring for Your Photographs
Before and After Conservation Treatment
 of a Daguerreotype c. 1850. Courtesy of
Gawain Weaver Art Conservation.

The American Institute for the Conservation of Historic and Artistic Works (AIC) plays a role in establishing and upholding professional standards, promoting research and publications, providing educational opportunities, and encouraging the exchange of information among conservators and other professionals. This resource provides information on the care and handling of photographs.

Gawain Weaver Art Conservation
Art conservator providing treatment and services for museums, galleries, collectors, historical societies and libraries. Good blog on art conservation and great links to additional resources, including a bibliography. 

Image Permanence Institute
A recognized leader in the development of sustainable practices for the preservation of images and cultural property through a program of research, education, products, and services. 

  • Dew Point Calculator: tool for calculating the best combination of temperature and relative humidity for long-term preservation of collection materials.
  • Digital Print Preservation Portal: site provides information, skills and tools needed to care for digitally printed collections, including technology, identification, deterioration and preservation.

Library of Congress: Caring for Your Photographs
This page provides expert yet practical information on preventing deterioration, handling, and storage of photographic materials.


Deterioration to Acetate Negative.
Courtesy of Gain Weaver Art Conservation.

National Park Services: Conserve-o-Grams
Leaflets from the National Park Service related to photographs include, but are not limited to: Storage Enclosures for Photographic Prints and Negatives, Chronology of Photographic Processes, Caring for Photographs: General Guidelines, Caring for Photographs: Special Formats, Caring for Color Photographs, and Identification of Film-Base Photographic Materials

A non-profit conservation center providing laboratory and digital services, workshops, publications, web tools, disaster response and emergency assistance. The site also includes access to Preservation Leaflets and Preservation 101, an online course on the preservation of paper collections and related materials

Wilhelm Imaging Research
Wilhelm Imaging Research conducts research on the stability and preservation of traditional and digital color photographs. His findings and digital print permanence ratings are available on this site.