The pdf file becomes a blank file after being uploaded and then downloaded.

[chj9]

Original file

111.pdf

Preview after uploading

Follow these steps

Preview after downloading

Deployment

Centos 7 App Version: 0.14.4 docker-compose.yaml

version: '3.3'
services:
    s-pdf:
        ports:
            - '8080:8080'
        image: frooodle/s-pdf

Website access address： http://43.159.194.123:8080/

[Frooodle]

Sorry i cant reproduce this, are you still seeing the issue? Is it with all PDFs? and does it happen on sites like https://pdf.adminforge.de/