DOCX vs PS
A detailed comparison of Word Document and PostScript — file size, quality, compatibility, and which format to choose for your workflow.
Technical Specifications
| Specification | .DOCX | .PS |
|---|---|---|
| MIME type | application/vnd.openxmlformats-officedocument.wordprocessingml.document | application/postscript |
| Container | ZIP archive (Office Open XML) | — |
| Standard | ISO/IEC 29500, ECMA-376 | Adobe PostScript Language Reference Manual (Red Book) |
| Released in | Microsoft Office 2007 | — |
| Legacy predecessor | .doc (binary, OLE Compound File) | — |
| Extensions | — | .ps, .eps (encapsulated), .prn (print-ready) |
| Language | — | PostScript Level 2 / 3 (Turing-complete, stack-based) |
| Successor | — | PDF (declarative subset, 1993) |
Strengths Comparison
.DOCX Strengths
- Much smaller than the legacy .doc format thanks to ZIP compression.
- Human-readable XML inside — automated extraction and manipulation is straightforward.
- Preserves formatting, images, tables, footnotes, comments, and track changes.
- Supported natively by Word, LibreOffice, Pages, Google Docs, and most modern editors.
- ISO/IEC 29500 standardized — not locked to a single vendor.
.PS Strengths
- Device-independent — same file prints identically on any PostScript printer.
- Vector-based at heart; rasterization happens at the printer's DPI.
- Programmable — dynamic pages, variable data, and procedural art all possible.
- Legacy standard in academic and print pipelines.
Limitations
.DOCX — Limitations
- Subtle formatting drifts when opened in non-Microsoft editors (fonts, line spacing, tab stops).
- Macros and embedded scripts make older .docm variants a common malware vector.
- Complex layouts with floating objects often reflow unpredictably.
- Version compatibility matters — Word 2007 cannot open some Word 2019 features cleanly.
.PS — Limitations
- Turing-complete = security hole; malicious PS files can hang printers or exploit vulnerabilities.
- Not a display format; browsers cannot render PostScript without conversion.
- Mostly superseded by PDF (which is PostScript's sandboxed, declarative descendant).
- File sizes can be enormous when embedding high-res images or fonts.
- Modern Illustrator (2020+) deprecated PostScript import for security.
Frequently Asked Questions
DOCX is the default document format for Microsoft Word since 2007, based on the Office Open XML standard. It stores text, formatting, images, tables, and macros in a compressed XML-based package.
PS (PostScript) 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.
DOCX files open in Microsoft Word, Google Docs (free), LibreOffice Writer (free), and Apple Pages. You can also view them in web browsers using OneDrive or Google Drive.
Modern office suites — Microsoft Word, Google Docs, LibreOffice Writer, Apple Pages — open most PS files with reasonable fidelity. If your installed software does not support PS, convert to DOCX or PDF first using KaijuConverter; both open in virtually every reader, including free online viewers.
Use DOCX when the document will be edited by others or needs collaborative review. Use PDF when you want to lock the layout and ensure the document looks identical on every device and printer.
Upload the PS 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.
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