Remote PDF preview, unable to display official seal and electronic signature

[sunjihai]

Describe the bug
Remote PDF preview, unable to display official seal and electronic signature

Steps to Reproduce
Steps to reproduce the behavior:

1. Remote PDF preview

Expected behavior
Normal display of official seal and signature

Screenshots

Smartphone (please complete the following information):

• Device: oppo、xiaomi、vivo，and other devices
• OS: [e.g. Android 13]

Additional context