# GroupDocs > Central documentation index for GroupDocs on-premise document processing SDKs. Explore developer documentation and guides for all product families. GroupDocs provides on-premise docum......md)) - [Using Spreadsheets as Data Sources](https://docs...groupdocs.com/assembly/net/using-spreadsheets-as-data-sources/) ([md](https://docs...
Learn how to get list of used fonts, specify or replace missing fonts, exclude fonts...formats, like WordProcessing, Spreadsheet, Presentation, and PDF, have...SpreadsheetFontInfo type contain lot of Spreadsheet-specific font data: its color...
Learn how to generate a preview for any page of an existing WordProcessing document in SVG format using GroupDocs.Editor for Node.js via Java....families: WordProcessing, Spreadsheet , and Presentation . Steps...inside the SVG using base64 encoding via the . Converting SVG to...
This article shows how to add Metadata signature to the each document type meta layer with different data types over with GroupDocs.Signature...object serialized as string and encoded into metadata value. Notes...collection to manipulate with. Spreadsheet documents (Microsoft Office...
This article shows how to add Metadata signature to the each document type meta layer with different data types over with GroupDocs.Signature...object serialized as string and encoded into metadata value. Notes...collection to manipulate with. Spreadsheet documents (Microsoft Office...
This article shows how to add Metadata signature to the each document type meta layer with different data types over with GroupDocs.Signature...object serialized as string and encoded into metadata value. Notes...collection to manipulate with. Spreadsheet documents (Microsoft Office...
This article explains main principles and stages of editing documents programmatically with GroupDocs.Editor for Python via .NET API....document type: Is the document encoded or not; Exact document format;...Number of pages (tabs); Text encoding, if the document is textual...
This article explains main principles and stages of editing documents programmatically with GroupDocs.Editor for .NET API....document type: Is document encoded or not; Exact document format;...Number of pages (tabs); Text encoding, if document is textual. In...
This is an introduction to editing documents, explaining the main stages of document opening, editing, and saving results within Node.js via Java applications....document type: Is the document encoded or not? Exact document format...Number of pages (or tabs). Text encoding, if the document is textual...
This is an introduction into edit document techniques explanation like main stages of document opening, editing and saving results within Java applications....document type: Is document encoded or not; Exact document format;...Number of pages (tabs); Text encoding, if document is textual. In...