What is an Incremental update?

Incremental update in PDF allows modifications to be added without rewriting the entire file.

Changes are appended at the end, preserving the original content.

For instance, PDF annotations in a document review tool are often made using incremental updates, ensuring the integrity of the original digitally signed document. These details are typically transparent to end-users. For technical specifics, refer to ISO 32000-2:2020.