About PS Files
PostScript
PostScript is a page description language used in desktop publishing and professional printing.
Family
Documents & Text
Extension
.ps
MIME Type
application/postscript
Can Use As
50 53 46 4D 00 01 00 00 4B 41 49 4A
ASCII: PSFM....KAIJ
📈 Target Minimum File Size (Guaranteed ≥ KB)
Lossless JPEG Q100 + standard COM segment padding for government & exam portals
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HOW PS CAME TO BE.
PostScript is older than the Macintosh. John Warnock and Charles Geschke founded Adobe in 1982 specifically to commercialize PostScript — a page-description language they had prototyped at Xerox PARC. The first public release came in 1984 when Apple licensed PostScript for the Apple LaserWriter, the $6,995 laser printer that essentially invented desktop publishing.
A .ps file is a complete PostScript program — code that instructs a printer (or a rendering engine like Ghostscript) how to draw each page. It is Turing-complete, which is both wonderful and terrifying: elegant procedural drawings are possible, and so are infinite loops, crashes, and security exploits. EPS is the sanitized, one-page, non-interactive subset. PDF is PostScript’s sandboxed descendant. Raw .ps files still appear in UNIX print pipelines and academic paper archives but are largely historical.
Technical Specifications
- MIME type
- application/postscript
- Extensions
- .ps, .eps (encapsulated), .prn (print-ready)
- Standard
- Adobe PostScript Language Reference Manual (Red Book)
- Language
- PostScript Level 2 / 3 (Turing-complete, stack-based)
- Successor
- PDF (declarative subset, 1993)
Typical Sizes & Weights
Simple academic paper
100 KB - 2 MB
Long paper with figures
5-30 MB
Multi-chapter book source
50-200 MB
STRENGTHS & LIMITATIONS.
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
- 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- Mostly superseded by PDF (which is PostScript's sandboxed, declarative descendant).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.
CURIOSITIES & TRIVIA.
Adobe was founded in 1982 specifically to commercialize PostScript — the company existed because of this format.
PostScript is a full programming language: Turing-complete, stack-based, similar to Forth.
Every laser printer from 1984 through the early 2000s was a PostScript interpreter running on dedicated hardware.
Apple's LaserWriter (1985) — $6,995, 512 KB of RAM dedicated to running PostScript — essentially invented desktop publishing.
Raw PostScript files can print and never halt — Ghostscript has a timeout to protect printers from infinite-loop programs.
Specialized Utilities for .PS Files
Merge PDF
Combine multiple PDF files into a single document. Drag and drop to reorder pages before merging. No software installation required.
Split PDF
Split a PDF into separate files by page ranges or extract individual pages. Perfect for isolating chapters, invoices, or specific sections.
Compress PDF
Reduce PDF file size without visible quality loss. Choose from low, medium, or high compression levels. Ideal for email attachments and web uploads.
PDF to Word Converter
Convert PDF documents into editable Microsoft Word (DOCX) files online for free while preserving layout, tables, and typography.
Word to PDF Converter
Convert Microsoft Word documents (DOCX, DOC) into print-ready PDF files with exact font embedding and layout preservation.
PDF to Excel Converter
Extract tables, financial rows, and structured columns from PDF files directly into editable Microsoft Excel (XLSX) spreadsheets.
Make PDF Searchable (OCR)
Add a searchable text layer to scanned PDF documents using OCR. The visual appearance stays the same but you can now search, select, and copy text.
Unlock PDF
Remove owner printing/copying restrictions and decrypt password-protected PDF files instantaneously once you enter the known password.
CONVERT FROM PS
Common Use Cases
Professional printing, prepress workflows
Related Formats
Popular comparisons
PS vs PDF
Differences, file size, and when to choose each format.
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PS vs DOCX
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PS vs ODT
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PS vs TXT
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PS vs MD
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Popular PS conversions
The most-requested destinations when starting from PS.
Frequently Asked Questions
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.
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.
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.
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 PS (frames, legacy macros) may flatten to static content in the target format.
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