Issue Summary

When exporting certain Confluence pages to PDF, the generated PDF is randomly truncated. The export operation reports success, but the resulting PDF:

• Is incomplete (content cut off part-way through the page)
• Shows the truncation point changing between export attempts of the same page

Steps to Reproduce

1. Create or open a Confluence page with substantial content (multiple sections so that the PDF export should reasonably exceed a few pages).
2. From the page menu, select … → Export to PDF.
3. Wait for the export to complete.
4. Open the exported PDF.
5. Repeat the export several times and compare the resulting files.

Expected Results

• The PDF export completes successfully.
• The exported PDF contains the full content of the Confluence page.
• Repeated exports of the same page produce PDFs of consistent length and content (aside from timestamp/metadata differences).

Actual Results

• The export operation completes and reports success.
• The exported PDF is truncated part-way through the content.
• The truncation point varies on each export of the same page.
• All examined PDFs are approximately the same file size (~850 KB), regardless of the expected length based on the page content.

Workaround

Currently there is no known reliable workaround for this behavior that guarantees full, non-truncated PDF exports in all cases.
Potential mitigations (not guaranteed and may not be applicable in all environments):

• Simplify or break up very large/complex pages into smaller sections and export separately.
• Remove or reduce heavy/complex content (e.g., very large tables, numerous macros, or embedded content) to see if exports complete without truncation.