Install and initialize LibreSign

Prerequisites

Use a supported Nextcloud instance and the matching LibreSign release. The application declares compatibility in its appinfo/info.xml; this site’s release selector distinguishes LibreSign versions from Nextcloud versions. Use an administrator account and plan for adequate disk space and network access if the application must download signing dependencies.

Install the app

  1. Open Nextcloud’s Apps administration page.

  2. Search for LibreSign and install or enable the release offered for your compatible Nextcloud version.

  3. Open the LibreSign administration settings and inspect Configuration check for resources requiring attention.

  4. In Dependencies, use Download binaries if prompted, then Validate setup to check the installation. The operation can take time and requires server resources.

  5. Configure the certificate engine and the Root certificate data appropriate to your organization. For the OpenSSL engine, the root certificate form asks for a Common Name (CN) and allows generating a root certificate when the installation requires it.

  6. Resolve remaining configuration errors before sending real invitations.

The location and presentation of some settings differ between LibreSign releases; see Configure signing. Do not regenerate an existing production root certificate merely to repeat initial setup.

Check the installation

Open LibreSign with a permitted user account. In a test environment, create a request, complete its supported signing method, and open Validate signature on the result. A successful installation check is not equivalent to verifying mail delivery, external identity providers, or production certificate policy; exercise those separately when enabled.