System Requirements Leave feedback

This section describes the system requirements for using GroupDocs.Conversion.LowCode package.

• .NET 6.0 or above

GroupDocs.Conversion.LowCode is a cross-platform package that can be used on:

• Windows
• Linux
• macOS

To develop applications using GroupDocs.Conversion.LowCode, you need:

• .NET SDK 6.0 or above for building applications
• .NET Runtime 6.0 or above for running applications

GroupDocs.Conversion.LowCode uses fontconfig and the TrueType fonts installed on the system. Without them, some conversions fail: for example, PPTX to PDF throws MissingDependencyException because libfontconfig and libfreetype are missing, and HTML to PDF or PDF to DOCX report that no fonts were found.

Install fontconfig together with the fonts your documents use. A missing font is replaced, and the replacement decides how the output looks:

• Word documents: when Times New Roman isn’t installed, the converter replaces every missing font with the first installed font family in alphabetical order. With only fonts-liberation installed, that is Liberation Mono, and the whole document renders in a monospace font, although Liberation Sans and Liberation Serif are metric-compatible with Arial and Times New Roman.
• Spreadsheets use installed metric-compatible fonts, for example Carlito for Calibri.

On Debian, Microsoft’s core fonts (Arial, Times New Roman, Courier New, Georgia, Verdana, and others) come with the ttf-mscorefonts-installer package from the contrib component. It downloads the fonts during installation and needs their license accepted. Add Carlito and Caladea, which are metric-compatible with Calibri and Cambria, and DejaVu:

sed -i 's/^Components: main$/Components: main contrib/' /etc/apt/sources.list.d/debian.sources
echo "ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true" | debconf-set-selections
apt-get update && apt-get install -y --no-install-recommends fontconfig ttf-mscorefonts-installer \
  fonts-liberation fonts-crosextra-carlito fonts-crosextra-caladea fonts-dejavu-core

On Ubuntu, the package is in the multiverse component.

To choose the font that replaces missing fonts in a Word document, set the DefaultFont load option of the converter, for example options => options.DefaultFont = "Liberation Sans". Installed fonts are not affected.

For the most accurate rendering of documents created in Microsoft Office, copy the fonts they use from a licensed Windows machine to /usr/share/fonts/truetype/ and run fc-cache -f.

No other native packages are required. In particular, libgdiplus is not needed.

macOS includes the common TrueType fonts, such as Times New Roman, Arial, and Verdana. If your documents use fonts that are missing, install them, for example with Homebrew:

brew install --cask font-arial font-times-new-roman font-verdana

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