# What changed in @signpdf/utils

> 4 changes in @signpdf/utils 3 to 4 from its official release notes, upgrade guides and advisories: 1 breaking. Each one cited. Sources checked 2026-10-27. HTML: https://unstale.sh/npm/@signpdf/utils/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## @signpdf/utils 4

### Breaking changes

- The minimum supported Node.js version is now 22; applications requiring older versions can continue using 3.4.0. (4.0.0) — [release notes](https://github.com/vbuch/node-signpdf/releases/tag/v4.0.0)

## @signpdf/utils 3

### Fixes and other changes

- Reads the DER length instead of stripping trailing 00 pairs when extracting a signature. (3.4.0) — [release notes](https://github.com/vbuch/node-signpdf/releases/tag/v3.4.0)
- Fixes compatibility with the PDFKit peer dependency. (3.4.0) — [release notes](https://github.com/vbuch/node-signpdf/releases/tag/v3.4.0)
- Preserves Unicode signature metadata in PDF-LIB. (3.4.0) — [release notes](https://github.com/vbuch/node-signpdf/releases/tag/v3.4.0)