OPML vs TEX
A detailed comparison of OPML Outline and LaTeX Document — file size, quality, compatibility, and which format to choose for your workflow.
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Technical Specifications
| Specification | .OPML | .TEX |
|---|---|---|
| MIME type | text/x-opml | application/x-tex |
| Extension | .opml | — |
| Format | XML with nested <outline> elements | — |
| Standard | OPML 2.0 (2006) | — |
| Primary use | RSS subscription interchange | — |
| Extensions | — | .tex, .ltx, .cls, .sty |
| Engines | — | pdfTeX, XeTeX, LuaTeX, ConTeXt |
| Macro layer | — | LaTeX, Plain TeX, ConTeXt |
| Output | — | DVI, PostScript, PDF |
Strengths Comparison
.OPML Strengths
- Standard RSS subscription interchange format.
- Simple XML — easy to parse and generate.
- Highly extensible via arbitrary attributes.
- Supported by every major outline and RSS tool.
.TEX Strengths
- Unmatched mathematical typesetting — LaTeX equations look publication-quality.
- Separates content from formatting — update the style template, the document reflows.
- Reliable output — same .tex produces the same PDF anywhere.
- Mature ecosystem with thousands of packages (beamer, tikz, biblatex, hyperref).
- Free and open-source under Knuth's license.
Limitations
.OPML — Limitations
- XML verbosity — larger than a JSON-based equivalent.
- Specification is loose — different tools disagree on edge cases.
- Primary use (RSS reading) has shrunk dramatically since Google Reader.
- No strong central stewardship.
.TEX — Limitations
- Steep learning curve.
- Error messages are notoriously cryptic.
- Complex figures and tables require manual tweaking.
- Modern editors (Word, Google Docs) do not open .tex.
- Compilation can be slow for long documents.
Frequently Asked Questions
OPML (OPML Outline) 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.
TEX (LaTeX Document) 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 OPML files with reasonable fidelity. If your installed software does not support OPML, 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 TEX files with reasonable fidelity. If your installed software does not support TEX, convert to DOCX or PDF first using KaijuConverter; both open in virtually every reader, including free online viewers.
Upload the OPML 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 OPML (frames, legacy macros) may flatten to static content in the target format.
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