How do inscriptions, signatures, and seals contribute to a Chinese painting?

In Chinese painting, inscriptions, signatures, and seals are considered an integral part of the overall composition rather than mere additions.1

• Signatures and Inscriptions: Because painting in China is fundamentally a linear art closely linked to calligraphy, the artist’s signature and any accompanying inscriptions are executed with the same brush, ink, and rhythmic sensitivity as the painting itself. These elements harmonize with the visual design, reflecting the artist's personal expression and cultivation.21
• Seals: Artists and collectors use private seals (t’u-chang) to mark their works. These seals, often made of materials like jade, wood, or ivory, are impressed in red ink and serve as a confirmation of the artist's identity or a mark of ownership. They allow artists to utilize various sobriquets, often reflecting personal or aesthetic tastes.3
• Historical and Connoisseurial Value: Beyond their aesthetic role, these markings are vital for authentication. Furthermore, the value and interest of a painting may be enhanced by colophons added by later connoisseurs, which provide a historical record of the work's appreciation over time.31