Merge DOCX and PPTX Files into One

Two new Office merge tools are available. Merge DOCX combines multiple Word documents into a single DOCX file, and Merge PPTX combines multiple PowerPoint presentations into one PPTX. Both preserve the exact look of every source file, or restyle everything with the design of the first document for a uniform result.

Highlights

• Merge DOCX - join multiple Word documents into one DOCX with full fidelity: fonts, styles, headers, footers, page size, margins, and orientation are preserved.
  • Separate documents with a section break, start each on a new page, or append with no break so the content flows continuously.
  • Update page numbers, tables of contents, and cross-references to reflect the combined document.
  • Mix legacy DOC files with DOCX, and merge password protected documents.
• Merge PPTX - combine multiple PowerPoint presentations into one PPTX, keeping each deck's theme, colors, fonts, and slide layouts, or restyling all slides with the design of the first presentation.
  • Mix legacy PPT files with PPTX, and merge password protected presentations.

Parameters

• KeepSourceFormatting (bool, default true) - preserve each source file's own formatting; when disabled, everything adopts the styling of the first document.
• BreakType (collection, default section) - Merge DOCX only: the break inserted between documents (section, page, or none).
• UpdateFields (bool, default false) - Merge DOCX only: refresh page numbers, tables of contents, and cross-references after the merge.

Try it out

• Merge DOCX - API sandbox: docx-to-merge
• Merge PPTX - API sandbox: pptx-to-merge