Fix: Cannot Create PDF from Multiple Word Documents in Acrobat Pro 9
Question details
The user is unable to combine multiple Microsoft Word documents into a single consolidated PDF file using Adobe Acrobat Pro 9.

- Product
- Adobe Acrobat Pro 9
- Device & OS
- not provided
- Scenario
- Attempting to merge or combine multiple Microsoft Word (.doc or .docx) files into one unified PDF document.
- Observed behavior
- Acrobat Pro 9 fails or refuses to combine the Word files, even though the feature previously worked, often due to PDFMaker add-in failures, restricted file locations, or corrupted Distiller components.
Ensure that all the Microsoft Word documents you want to combine are saved in a local, unrestricted folder on your computer's hard drive, as network drives or cloud-synced folders can block the conversion process.
Enable the Acrobat PDFMaker Add-in in Microsoft Word
Re-enabling the PDFMaker COM add-in restores the vital communication link between Microsoft Word and Acrobat Pro 9.
Microsoft Word may automatically disable the Acrobat PDFMaker add-in if it detects a slow startup or a previous crash. Without this add-in enabled, Acrobat cannot accurately read and convert multiple Word documents in bulk.
Open Microsoft Word, click on the 'File' menu (or Office Button), and select 'Options' or 'Word Options'.
Click on 'Add-ins' in the left-hand menu pane. At the bottom of the window, ensure the 'Manage' dropdown is set to 'COM Add-ins' and click 'Go'.
Locate 'Acrobat PDFMaker Office COM Addin' in the list, check the box next to it, and click 'OK'. Restart Microsoft Word and try combining the files again in Acrobat.

Combine Files Directly Within Acrobat Pro 9
Bypass Word's external integration entirely by using Acrobat's native file-merging interface.
Repair the Adobe Acrobat Pro 9 Installation
Repairing the installation fixes corrupted Acrobat Distiller components that handle the backend processing of Word-to-PDF conversions.
Easily Merge Multiple Word Documents to PDF with WPS Office
Skip complex add-in troubleshooting and easily combine multiple Word files into a single PDF using the built-in PDF tools in WPS Office.
- 1. Open WPS Office Tools: Launch WPS Office and navigate to the 'Tools' tab on the main interface.
- 2. Select PDF Tools: Click on 'Merge PDF' or use the 'Word to PDF' batch converter tool depending on your exact workflow preference.
- 3. Import Word Documents: Click 'Add Files' and select all the Microsoft Word documents you want to combine.
- 4. Merge and Export: Arrange the files into your preferred order and click 'Merge' to instantly create and save your new combined PDF.

Frequently Asked Questions
Why did the Acrobat PDFMaker add-in suddenly disappear from Word?
Microsoft Word automatically disables COM add-ins like PDFMaker if they cause the application to crash, hang, or load too slowly. You can re-enable it manually through the COM Add-ins menu in Word Options.
Can I combine Word documents that have different formatting into one PDF?
Yes, when combining multiple Word documents into a single PDF, the individual layout, margins, and formatting of each separate document are preserved on their respective PDF pages.
Does storing my files on a network drive affect PDF creation?
Yes, if your Word documents are stored in network drives, cloud-synced folders, or directories with restricted read/write permissions, Acrobat may lack the access rights to process them. Moving the files to a local folder, such as your Desktop, usually resolves this.
What should I do if Acrobat Distiller is missing or crashes?
Acrobat Distiller is the background engine responsible for converting documents to PDF. If it is missing or corrupted, you must run the 'Repair Acrobat Installation' tool from the Help menu or completely reinstall Acrobat Pro 9.




