Outdated bundled mPDF library breaks PDFs on PHP 8.4
The bundled mPDF library is outdated, causing unserialize warnings on PHP 8.4 and an upgrade that fails to extract.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 11 March 2021 · last reported 29 April 2026
What's going wrong
Owners running PHP 8.3 or 8.4 report that the mPDF library bundled with this plugin is an old version, which fills their error logs with unserialize warnings and breaks lists in exported articles.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 4 reports are about, and how many came each month.
- Related problems.
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