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Thirdparty software requirements

OpenKM uses third-party software for some features. Some of this software needs to be installed on the server, while other software is optional.

Software Usage Additional information Required
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