OpenKM 8.1

Libreoffice

• Converts documents to PDF.
• It is needed for the preview feature.

Yes

ImageMagick

or

GraphicsMagick

• Transforms images.
• Generates thumbnails.
• It is needed for the preview feature.

Usually, it comes by default installed in Linux OS.

In most cases, it is not necessary to install it on Windows because it is embedded by default with the OpenKM bundle installation.

Yes

GhostScript

• Interpreter for the PostScript language and PDF.
• Needed by Imagemagick.

Usually, it comes by default installed on Linux OS.

Optional

Tesseract

• OCR engine.
• They are used for the text extraction feature.

It is required when the application must process images to extract text (OCR).

Optional

FFmpeg

• Converts and streams audio and video

Optional

Clamav or equivalent

• Antivirus

 Required when antivirus feature is enabled.

Optional