Do it on the back or borders with a soft pencil. Also, be careful not to store any material in a basement or attic, close to water pipes, along the outside walls of a building, in wood bookcases or boxes, craft papers, or manila envelopes. Never use paper clips, staples, or rubber bands. Other factors you should take into account when storing your artwork include high temperatures, humidity, and light. In addition, contamination and pollution can help deteriorate your images.
Low humidity can make the photographs curl, and high humidity can cause mold and fungus growth.
Light Photographs should be stored in the dark, since light causes the image to fade. The most damaging light is ultra violet, which you should eliminate by using Plexiglas or glass that can absorb this type of light when you're framing prints. Contamination and pollution Both environmental and atmospheric contamination can cause the deterioration of your images. You should avoid contact with ozone from heated car exhaust and copy machines, sulfur, and peroxides. Leather and rubber contain large quantities of sulfur.