ADOC vs RTF
A detailed comparison of AsciiDoc and Rich Text Format — file size, quality, compatibility, and which format to choose for your workflow.
Technical Specifications
| Specification | .ADOC | .RTF |
|---|---|---|
| MIME type | text/asciidoc | application/rtf |
| Extensions | .adoc, .asciidoc, .asc | .rtf |
| Processors | AsciiDoc (Python), Asciidoctor (Ruby) | — |
| Stewardship | Eclipse AsciiDoc Working Group | — |
| Output targets | HTML, PDF, EPUB, DocBook, man page | — |
| Standard | — | RTF Specification 1.9.1 (2008) |
| Character set | — | ASCII with Unicode escapes (\u) |
Strengths Comparison
.ADOC Strengths
- Expressiveness of DocBook in plain text.
- Cross-references, tables, bibliographies, math, and metadata native.
- Multi-output: HTML, PDF, EPUB, man pages, DocBook XML.
- Faster parsing than LaTeX, richer than Markdown.
- Eclipse Foundation stewardship.
.RTF Strengths
- Plain ASCII — portable, grep-able, and diff-friendly.
- Supported by every word processor on every OS since 1990.
- Cannot carry macros or embedded code — relatively safe to open.
- Simple enough to parse by hand or generate with a small script.
- Good interchange format when DOCX compatibility is shaky.
Limitations
.ADOC — Limitations
- Steeper learning curve than Markdown.
- Smaller ecosystem than Markdown despite being more capable.
- Most CI tools default to Markdown, not AsciiDoc.
- Authoring WYSIWYG tools are limited.
.RTF — Limitations
- Frozen in 2008 — no modern features (no comments, poor styles, no track changes).
- File sizes are bigger than DOCX for the same content (no compression).
- Images are base64-encoded inline, inflating files further.
- Visual fidelity drifts between Word versions despite the spec.
Frequently Asked Questions
ADOC (AsciiDoc) is a document format used to store paginated text, with optional formatting, tables, images, hyperlinks, headers and footers. It sits in the documents & text family and is typically associated with a specific office suite or publishing pipeline that defined the format and ships the canonical reader.
RTF (Rich Text Format) is a document format used to store paginated text, with optional formatting, tables, images, hyperlinks, headers and footers. It sits in the documents & text family and is typically associated with a specific office suite or publishing pipeline that defined the format and ships the canonical reader.
Modern office suites — Microsoft Word, Google Docs, LibreOffice Writer, Apple Pages — open most ADOC files with reasonable fidelity. If your installed software does not support ADOC, convert to DOCX or PDF first using KaijuConverter; both open in virtually every reader, including free online viewers.
Modern office suites — Microsoft Word, Google Docs, LibreOffice Writer, Apple Pages — open most RTF files with reasonable fidelity. If your installed software does not support RTF, convert to DOCX or PDF first using KaijuConverter; both open in virtually every reader, including free online viewers.
Upload the ADOC to KaijuConverter and pick DOCX, PDF, ODT, RTF, HTML, Markdown, or plain text. Our pipeline runs LibreOffice headlessly plus pandoc for text formats — the same engines behind professional document pipelines. Styles, tables, images, and hyperlinks survive the conversion intact.
Yes, to a high degree. Standard fonts, headings, lists, tables, images, hyperlinks and page structure transfer cleanly. Custom fonts substitute to the closest match if not embedded; obscure layout features unique to ADOC (frames, legacy macros) may flatten to static content in the target format.
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