ADOC vs RTF
A detailed comparison of AsciiDoc and Rich Text Format — file size, quality, compatibility, and which format to choose for your workflow.
AsciiDoc
Documents & TextAsciiDoc is a human-readable markup language designed for writing technical documentation, articles, and books. It supports rich formatting including tables, admonitions, cross-references, and can be converted to HTML, PDF, EPUB, and DocBook.
About ADOC filesRich Text Format
Documents & TextRTF is a cross-platform document format that supports basic text formatting like bold, italic, fonts, and colors. It is readable by virtually all word processors, making it useful for maximum compatibility.
About RTF filesStrengths 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.
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) |
Typical File Sizes
ADOC
- Short technical article 2-20 KB
- Book chapter 20-150 KB
- Full book source 500 KB - 5 MB
RTF
- Short formatted letter 15-50 KB
- 20-page report with styling 150 KB - 1 MB
- Document with embedded images 2-20 MB
Ready to convert?
Convert between ADOC and RTF online, free, and without installing anything. Encrypted upload, automatic deletion after 60 minutes.
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.
ADOC (AsciiDoc) is a document formato used to store paginated text, com optional formatoting, tables, images, hyperlinks, headers e footers. It sits no documents & text family e is tipicamente associated com a specific office suite ou publishing pipeline that defined the formato e 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 — abrir most ADOC arquivos com reasonable fidelity. If your installed software does not support ADOC, converter to DOCX ou PDF first usando KaijuConverter; both abrir in virtually every reader, including grátis 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.