# stet-cli
[](https://crates.io/crates/stet-cli)
[](https://docs.rs/stet-cli)
Command-line interface for stet — the `stet` binary renders PostScript,
EPS, and PDF files to PNG, PDF, or an interactive desktop viewer.
## Installation
```bash
cargo install stet-cli
```
## Usage
stet auto-detects the input format (PS, EPS, PDF). The same commands work
against every source.
### PDF
```bash
# PDF → PNG (one file per page at 300 DPI)
stet --device png document.pdf
# Pages 1–3 at 150 DPI
stet --device png --pages 1-3 --dpi 150 document.pdf
# Honour the PDF's embedded /OutputIntents (PDF/X-4 etc.) — default behaviour
stet --device png document.pdf
# Override with a specific source-CMYK profile
stet --device png --cmyk-profile /path/to/FOGRA39.icc document.pdf
# Open a PDF in the interactive viewer (default when built with the viewer feature)
stet document.pdf
```
### PostScript / EPS
```bash
# PostScript → PNG
stet --device png document.ps
# PostScript → PDF
stet --device pdf document.ps
# Render specific pages
stet --device png --pages 1-3 document.ps
# Interactive viewer, REPL on first `showpage`
stet document.ps
stet # no files → REPL; viewer opens when PS calls showpage
```
### Mixed batches
```bash
# Render a mix of sources in one invocation
stet --device png page1.ps page2.pdf illustration.eps
```
### Page size for PostScript input
A plain `%!PS` program is rendered onto whatever page the device provides,
US Letter by default. `%%BoundingBox` does **not** change that — DSC defines
it as a description of the artwork, not a page-size request, and Ghostscript
behaves the same way. `--page` supplies the size from outside:
```bash
stet --device png --page 620x1000 broadside.ps # explicit, in points
stet --device png --page a4 report.ps # named size
stet --device png --page a4-landscape report.ps # swap the dimensions
```
EPS is the exception: an `EPSF` header or a `.eps` extension makes stet
honour `%%BoundingBox`, and `--page` overrides it when both apply. For PDF
input the size comes from the document, so use `--width` / `--height` instead.
### Untrusted input
PostScript is Turing-complete, so there is no time limit by default and a
hostile program can loop forever. Set one, and cap PostScript VM, when the
input is not yours:
```bash
stet --device png --timeout 30 --max-vm 2048 untrusted.ps
```
Both are ceilings on the interpreter, not on rendering resolution. Run
untrusted input inside an OS-level sandbox as well.
### Inspecting a PDF
`stet inspect` prints a document's structure — metadata, page boxes, outline,
annotations, form fields, embedded files, and optional-content layers —
without rendering it.
```bash
stet inspect document.pdf
stet inspect --password secret encrypted.pdf
```
## Options
```
stet [OPTIONS] <FILE>...
stet inspect <FILE.pdf> [--password <PW>]
stet --help
stet --version
Output devices:
--device <DEVICE> png, pdf, viewer, viewport-png, null
(default: viewer for files when built with the
viewer feature, png otherwise)
Common options:
--dpi <DPI> Resolution for raster output (default 300)
--page <SIZE> Page size for PostScript/EPS input, in points:
a named size (letter, legal, tabloid, ledger,
executive, a0-a6, b4, b5) or WIDTHxHEIGHT.
Append -landscape or -portrait to a named size.
Rejected for PDF input
--pages <RANGE> Page selection: 3, 1-5, 1-3,7,10-12
--width <PX> Override page width (PDF input only; not
combinable with --dpi or --page)
--height <PX> Override page height (same restrictions)
--threads <N> Worker-thread count (default: 75% of cores in
viewer mode, 8 otherwise)
--password <PW> Password for encrypted PDF input
--no-aa Disable anti-aliasing
Resource limits (for untrusted input):
--timeout <SECONDS> Abort a job running longer than this. No limit
by default — PostScript is Turing-complete and
legitimate jobs can run for minutes
--max-vm <MB> Ceiling on PostScript VM: strings, arrays, and
dictionaries (default 8192). Exceeding it raises
VMerror instead of aborting. Separate from the
renderer's image and band buffers, so this does
not cap rendering resolution
Colour management:
--no-icc Disable ICC colour management; use the PLRM
CMYK→sRGB formulas. Cannot combine with
--cmyk-profile or --bpc
--output-profile <FILE> ICC output profile (also used as source CMYK
when --cmyk-profile is not set)
--cmyk-profile <FILE> Pin the source CMYK ICC profile for CMYK→sRGB
--use-output-intent Honour the PDF's embedded /OutputIntents profile
as the source CMYK profile (default)
--no-output-intent Ignore it and use the system CMYK profile
```
`stet --help` prints the same list; `scripts/check-cli-docs.sh` in the
repository keeps the two from drifting apart.
PDF reading (`stet-pdf-reader`) is always available. PostScript
interpretation, `stet-render`, PDF output (`stet-pdf`), and the viewer are
built in as well. The interactive viewer can be disabled at build time.
## Features
| `viewer` | yes | Build the interactive egui window (zoom, pan, minimap, drag-and-drop). Disable for a headless CLI. |
## License
Apache-2.0 OR MIT