Fix Adobe Acrobat Taking Too Long to Convert Word to PDF
Question details
The user needs to resolve an issue where converting a large Word document to PDF takes excessively long, while faster alternative methods lose important document bookmarks.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Converting a large Microsoft Word file into a PDF document without losing the embedded bookmarks.
- Observed behavior
- Standard Word to PDF conversion via Adobe Acrobat takes more than an hour. Using the Print to PDF feature is fast but completely strips the document of its bookmarks.
Before proceeding, ensure your Microsoft Word document is saved locally on your computer's hard drive. Converting files directly from a network drive or shared cloud storage can significantly increase processing time due to latency.
Create the PDF Directly from Adobe Acrobat
Initiating the conversion from within Acrobat instead of using the Word plugin or context menu can often bypass background performance bottlenecks.
Sometimes the integration between Microsoft Word and Adobe Acrobat experiences communication delays, especially with large files. Pulling the file into Acrobat directly is generally more stable.
Launch the Adobe Acrobat application on your computer.
Click on 'File' in the top menu bar, select 'Create', and then choose 'PDF from File'.
Browse your local storage, select the problematic Word document, and click 'Open'.
Wait for Acrobat to process the file natively, then save the newly generated PDF. Check if the bookmarks are preserved.

Optimize the Word Document and Update Software
Complex document elements and outdated software versions are common culprits for stalling the conversion process.
Convert Word to PDF Instantly with WPS Office
Avoid hour-long loading times and retain all your essential bookmarks by using WPS Office's built-in PDF converter. It natively processes Microsoft Word formats and exports high-quality, fully-structured PDFs in seconds.
- 1. Open the Document in WPS Office: Launch WPS Office Writer and open your large Microsoft Word file.
- 2. Access the Export Tool: Click on 'Menu' in the top-left corner and select 'Export to PDF'.
- 3. Enable Bookmarks: In the export dialog box, click on 'Advanced settings' and ensure the 'Export bookmarks' option is checked.
- 4. Export the PDF: Click the 'Export' button to instantly generate your PDF document with all original bookmarks intact.

Frequently Asked Questions
Why does the 'Print to PDF' method lose all my bookmarks?
The 'Print to PDF' function acts like a virtual printer that visually flattens your document onto a digital page. Because it only focuses on the visual layout to mimic paper, it entirely strips out underlying structural metadata like hyperlinks, interactive tags, and bookmarks.
Can tracked changes cause a PDF conversion to take over an hour?
Yes. If a Word document contains hundreds of unresolved tracked changes or comments, the PDF converter must process a massive amount of hidden formatting data and history. Accepting or rejecting all changes before exporting can dramatically reduce conversion time.
Does file size directly dictate how long a Word to PDF conversion takes?
While file size is a factor, document complexity plays a larger role. A small file containing complex uncompressed images, heavy vector graphics, embedded fonts, or damaged XML structures will often take much longer to convert than a large file consisting purely of standard text.




