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 is installed by default on Linux OS.

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

Yes

Ghostscript

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

Usually, it is installed by default on Linux OS.

Optional

Tesseract

• An OCR engine.
• It is 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 the antivirus feature is enabled.

Optional