Handwritten signature documents need to be properly kept before storage to avoid being affected by natural disasters, human operation, temperature and humidity and other factors. During the period of 10, handwritten signature documents may be affected by the following: paper aging: paper may turn yellow or even tear and crack due to aging. This may cause the handwritten signature to become unclear or illegible, and even lose its legal effect. Ink fading: Bad environmental factors such as improper use of ink or strong sunlight will lead to ink fading, and the color and clarity of handwritten signature will be reduced. Physical damage: documents may be physically damaged due to long-term storage, such as folding, bending, friction or moisture damage. Legal change: In some cases, the law may change, resulting in handwritten signature records or certificates no longer having legal effect.

Handwritten signed documents should be properly preserved, and the specific preservation methods include: using paper with low acidity and low wood pulp content; Choosing high-quality paper with neutral PH value and low wood pulp content can prevent yellowing and deterioration. Avoid repeated folding or bending: Handwritten signed documents should avoid repeated folding or forced bending, which will easily lead to paper damage and fuzzy deformation of signatures. Keep in the dark: Handwritten signed documents should be kept in an environment where the battery will not volatilize and avoid direct sunlight. Digital processing: the original scanning or photo shooting of files, and the use of appropriate software to store and manage digital files for subsequent inquiry and inspection.