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knowledge-base/choose-right-editor-radflowdocumenteditor-radfixeddocumenteditor-fixedcontenteditor.md

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+---
+title: Choosing Between RadFlowDocumentEditor, RadFixedDocumentEditor, and FixedContentEditor
+description: Learn the differences between the Word and PDF editors in Telerik Document Processing and choose the right API for your document-generation scenario.
+type: how-to
+page_title: Choose the Right Telerik Document Editor for Word and PDF Generation
+slug: choose-right-editor-radflowdocumenteditor-radfixeddocumenteditor-fixedcontenteditor
+tags: radflowdocumenteditor, radfixeddocumenteditor, fixedcontenteditor, radwordsprocessing, radpdfprocessing, pdf, docx, document, generation
+res_type: kb
+---
+
+## Environment
+
+| Version | Product | Author |
+|---|---|---|
+| 2026.2.707 | PdfProcessing and WordsProcessing | [Yoan Karamanov](https://www.telerik.com/blogs/author/yoan-karamanov) |
+
+## Description
+
+You need to decide between `RadFlowDocumentEditor`, `RadFixedDocumentEditor`, and `FixedContentEditor` for document generation with the [Document Processing Libraries]({%slug introduction%}). The three editors serve different layout models, come from different libraries, and offer different levels of control and convenience.
+
+## Solution
+
+Use this rule first:
+
+* Choose `RadFlowDocumentEditor` when your source model is Word-like flow content (`RadFlowDocument`) and you need high-level editing.
+* Choose `RadFixedDocumentEditor` when your output is PDF and you need flow-like authoring with automatic pagination.
+* Choose `FixedContentEditor` when your output is PDF and you need precise, coordinate-based placement.
+
+### Library and Model Differences
+
+| Library | Main document model | What it is best at | Format notes |
+|---|---|---|---|
+| [RadWordsProcessing]({%slug radwordsprocessing-overview%}) | `RadFlowDocument` | Word-processing scenarios: rich text, sections, paragraphs, fields, tables | Supports multiple import and export formats. PDF support is [export only]({%slug radwordsprocessing-formats-and-conversion%}). |
+| [RadPdfProcessing]({%slug radpdfprocessing-overview%}) | `RadFixedDocument` | Native PDF creation/import/edit/export | Designed for fixed-layout PDF content and page-level control. |
+
+### Editor Comparison
+
+| Editor | Library | Layout behavior | Pros | Cons | Best use cases |
+|---|---|---|---|---|---|
+| [RadFlowDocumentEditor]({%slug radwordsprocessing-editing-radflowdocumenteditor%}) | RadWordsProcessing | Flow-based in Word document model | High productivity API; inserts content in logical order; good for structured document generation | Not a PDF-native editor; final PDF output depends on WordsProcessing PDF export capabilities | DOCX-first generation, templates, mail-merge-like content assembly |
+| [RadFixedDocumentEditor]({%slug radpdfprocessing-editing-radfixeddocumenteditor%}) | RadPdfProcessing | Flow-like authoring for PDF with automatic sizing and page flow | Less manual layout work; convenient for text-heavy PDF reports; handles page flow automatically | Less absolute control than coordinate-based drawing | PDF reports, invoices, catalogs, long flowing documents |
+| [FixedContentEditor]({%slug radpdfprocessing-editing-fixedcontenteditor%}) | RadPdfProcessing | Fixed positioning on a specific PDF page/content root | Maximum control over exact placement, size, transforms, and drawing | You must manage coordinates, available space, and overlap/cropping risks manually | Pixel-precise layout, overlays, stamps, custom graphics, form-like positioned content |
+
+### Practical Guidance
+
+If you create content similar to a Word document, start with `RadFlowDocumentEditor`.
+If you create a PDF directly and need easier layout flow, use `RadFixedDocumentEditor`.
+If exact XY placement is mandatory, use `FixedContentEditor`.
+
+For Word-to-PDF conversion scenarios, RadWordsProcessing exports PDF based on its supported feature matrix. If a source document uses unsupported or partially supported features, visual differences can appear in exported PDF. Review [Formats and Conversion]({%slug radwordsprocessing-formats-and-conversion%}) for details.
+
+## See Also
+
+* [RadWordsProcessing Overview]({%slug radwordsprocessing-overview%})
+* [RadPdfProcessing Overview]({%slug radpdfprocessing-overview%})
+* [RadFlowDocumentEditor]({%slug radwordsprocessing-editing-radflowdocumenteditor%})
+* [RadFixedDocumentEditor]({%slug radpdfprocessing-editing-radfixeddocumenteditor%})
+* [FixedContentEditor]({%slug radpdfprocessing-editing-fixedcontenteditor%})
+* [RadWordsProcessing Formats and Conversion]({%slug radwordsprocessing-formats-and-conversion%})

libraries/radpdfprocessing/editing/radfixeddocumenteditor.md

@@ -262,3 +262,4 @@ There is an additional overload of `InsertFormInline()` that allows you to pass
 * [How to Generate a PDF Document from Images with RadFixedDocumentEditor]({%slug pdf-from-images-with-radfixeddocumenteditor%})
 * [Generating a Table with RadFixedDocumentEditor]({%slug generate-table-with-radfixeddocumenteditor%})
 * [Generating a PDF Product Catalog]({%slug generating-pdf-product-catalog%})
+* [Choosing Between Word and PDF Editors for Document Generation]({%slug choose-right-editor-radflowdocumenteditor-radfixeddocumenteditor-fixedcontenteditor%})