Last updated: 2026-10-15 · 1 min read

Replace a document or restore an earlier version

Use file management on the document detail page to update a shared PDF without sending a new URL. A registered account is required.

Replace the PDF

  1. Open the document from the Terasu Signal library
  2. In file management, choose a replacement PDF of 25 MB or less
  3. Optionally add a label to identify the version
  4. Submit the replacement and check the completion message

Existing shared links display the new version. Document or storage limits can prevent replacement; see Document and storage capacity.

Restore an earlier version

Select a saved version in the version history and use the restore action. Shared links also switch to that version. This changes what recipients see, rather than just your local preview.

A document can retain up to 30 versions. If this limit prevents replacement, check the displayed reason. Only retained versions can be restored. If an operation fails, read the reason and reload the document details to check its state. Restoring a version is separate from deleting a document or a shared link.

For access conditions, see Shared-link settings.

Replace a document or restore an earlier version | Help center