v0.49.0

0.49.0 (2026-09-01)

Added

• Core: DOCX documents can be joined with DocxEditor.Merge. PdfEditor.Merge had shipped and
  the DOCX equivalent had not, though the underlying library appends documents in one call. Takes
  the documents in the order given, with Stream and file-path forms beside the byte[] one.

  If you also stamp watermarks, watermark each document before merging. A merged document
  carries two section-properties elements but reports a single section, so AddWatermark applied
  afterwards marks it once and later pages may be unmarked.

• Extensions: the metadata, protection and formula Stream overloads from 0.48.0 are now on the
  four editor interfaces, so a Stream-shaped caller reaches them through dependency injection
  rather than only through the static classes.

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Retro-fitted 2026-09-02. The original entry was release-please's generated text; the package's own
release notes on nuget.org still carry that generated form and cannot be edited after publication.