System requirements

PDFjojo runs on PHP 8.2+ with a flat-file database. Ubuntu 24.04 LTS is the intended production OS.

PHP extensions

• php-cli, php-mbstring, php-fileinfo, php-gd, php-curl, php-zip

Optional processing packages

• qpdf
• ghostscript
• poppler-utils
• imagemagick
• libreoffice
• tesseract-ocr (eng, hin, spa, fra, deu)
• ocrmypdf

Package install commands are documented in docs/UBUNTU.md and are not hard-coded into application logic.

This machine

• ✓ qpdf
• ✓ gs
• ✓ pdftoppm
• ✓ pdftotext
• ✓ tesseract
• ✓ ocrmypdf
• ✓ magick
• ✓ soffice