There are several ways to keep a piece of paper for a long time:

1, go to the stationery store to buy a transparent hard plastic sleeve A5 or A3 for installation;

2. Plastic paper with plastic photos;

3. Pay attention to the fact that dry places should not be put in wet places, which will accelerate the oxidative decomposition of paper. Use this book holder to reduce the friction of paper movement, and use plastic bags for vacuum compaction and preservation;