Server check
PDF engine status
This page helps confirm that open-source engines are available on the VPS before PDF tools are used by visitors.
Install engines on Ubuntu VPS
sudo apt update && sudo apt install -y qpdf poppler-utils ghostscript libreoffice imagemagick zip unzip
qpdf
qpdf --version
Detected
Poppler pdfunite
pdfunite -v
Detected
Poppler pdfseparate
pdfseparate -v
Detected
Ghostscript
gs --version
Detected
LibreOffice headless
soffice --version
Detected
ImageMagick
convert --version
Detected
Poppler pdftoppm
pdftoppm -v
Detected