Fix Acrobat DC Cannot Convert Word or Excel Files When Combining PDFs
Question details
The user is unable to convert Microsoft Word and Excel files into a single PDF using Adobe Acrobat DC's combine files feature.
- Product
- Adobe Acrobat DC / Microsoft Office
- Device & OS
- not provided
- Scenario
- Combining multiple files of different formats (Word, Excel) into a single PDF document using Acrobat DC.
- Observed behavior
- Acrobat DC displays a warning stating that the Microsoft Word and Excel documents cannot be converted to PDF, despite the same workflow functioning correctly on other computers.
Ensure you have administrator privileges on your computer, as you may need to check, repair, or modify your local Microsoft Office installation settings.
Verify and Repair Local Microsoft Office Installation
Adobe Acrobat DC relies on a locally installed desktop version of Microsoft Office to process and convert Word and Excel files in the background during the PDF combination process.
Acrobat DC cannot use web-only versions of Microsoft 365 or cloud-based Office apps to perform file conversions. If the background PDFMaker add-in is missing or Office is not locally installed, the conversion will fail.
Open your Windows Start menu and search for 'Microsoft Word' or 'Excel'. Launch the application to confirm it is fully installed on your local hard drive and properly activated.
Open Microsoft Word, navigate to File > Options > Add-ins. In the 'Manage' dropdown at the bottom, select 'COM Add-ins' and click 'Go'. Ensure the 'Acrobat PDFMaker Office COM Addin' is checked and enabled.
If the add-in is missing or errors persist, go to Windows Settings > Apps > Installed apps. Locate Microsoft Office, click 'Modify', and select 'Online Repair' to restore the missing background conversion components.
Combine Word, Excel, and PDFs Easily with WPS Office
Skip the hassle of troubleshooting third-party plugin integrations. WPS Office features a powerful built-in PDF toolkit that allows you to seamlessly combine Word documents, Excel spreadsheets, and existing PDFs into a single file without requiring external background software.
- 1. Open WPS PDF Tools: Launch WPS Office on your computer and navigate to the 'PDF' tab from the main interface.
- 2. Select PDF Merge: Click on 'Merge PDF' or 'Combine Files' located in the top toolbar to open the combination dialog.
- 3. Add Files and Convert: Add your Word, Excel, and PDF files into the window, drag them to arrange your preferred order, and click 'Merge' to instantly generate a single PDF document.
Frequently Asked Questions
Why does Acrobat DC convert Word files smoothly on one computer but fail on another?
This discrepancy usually occurs because the failing computer lacks a local desktop installation of Microsoft Office, has a corrupted Office installation, or is running an unsupported, web-only version of Office 365.
Do I need to keep Microsoft Office open to combine files in Acrobat?
No, you do not need to keep the Office applications actively open on your screen. Acrobat runs Word and Excel in the background using the PDFMOfficeAddin to perform the conversion.
Can I convert Excel files to PDF without installing Microsoft Office?
Adobe Acrobat requires Microsoft Office to be installed to convert Excel files natively. If you don't have Office installed, you can use standalone all-in-one office suites like WPS Office, which handles the conversion independently.
