FIG to PGX Converter

Online FIG to PGX — sharp image output fast

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Quality Preserved

Convertio ensures your FIG diagrams look great in PGX. Conversion maintains visual fidelity from source to output.

Zero Setup

The converter works out of the box — open any browser, upload, convert. No installs, no configuration, no hassle.

Instant Access

No signup necessary. Visit the page, upload your FIG file, and get results without creating any account.

How to convert FIG to PGX

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose pgx or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your pgx file right afterwards

About formats

FIG is the native file format of Xfig, a free vector graphics editor for the X Window System, originally written by Supoj Sutanthavibul at the University of Texas at Austin in 1985. The format uses a plain-text structure where each graphic object is described on one or more lines with numeric parameters specifying object type, coordinates, line properties, fill attributes, and depth ordering. FIG supports compound objects (groups), polylines, polygons, splines, arcs, ellipses, text strings, and imported bitmaps, each with configurable colors, line styles, arrow heads, and area fills. Files begin with a header line declaring the format version (currently 3.2), followed by a resolution specification and the object definitions. One advantage is exceptional simplicity — the entirely text-based format is trivially parsed, generated, and manipulated by scripts, making FIG popular as an intermediate format in automated diagram generation pipelines. The rich ecosystem of conversion tools is another strength: fig2dev exports FIG files to dozens of output formats including EPS, PDF, SVG, LaTeX picture environments, PSTricks, and TikZ. This made Xfig and FIG especially popular in academic and scientific communities, where authors generate publication-quality figures that integrate seamlessly with LaTeX documents. While graphical tools have evolved since the 1980s, FIG remains in use among researchers who value its scriptability, LaTeX integration, and well-documented format stability.
Initial release: 1985
PGX is a simple single-component raster image format defined as part of the JPEG 2000 standard (ISO/IEC 15444) for use in conformance testing and verification of JPEG 2000 codec implementations. Introduced around 2000 alongside the JPEG 2000 specification itself, PGX files store a single image component (one color channel or grayscale plane) with a text header followed by raw pixel data, providing an unambiguous reference representation against which encoder and decoder outputs can be compared sample by sample. The header is a single ASCII line specifying endianness (ML for big-endian, LM for little-endian), signedness (+ for unsigned, - for signed), bit depth (1 to 32 bits), width, and height. The pixel data follows as raw binary values, each occupying the minimum number of bytes needed for the specified bit depth, with one value per pixel. For multi-component images (like RGB), each component is stored in a separate PGX file. The format's deliberate simplicity — no compression, no metadata, no multi-channel support — ensures there are no ambiguities in interpretation that could mask codec bugs. One advantage is verification precision: PGX's uncompressed, exactly-specified representation allows bit-exact comparison of decoded JPEG 2000 output against reference images, essential for certifying that a codec implementation conforms to the standard. The format's role in the JPEG 2000 conformance testing framework means it is implemented by every serious JPEG 2000 codec (OpenJPEG, Kakadu, etc.) and used in the official ISO conformance test suite. PGX files can also be processed by ImageMagick and various JPEG 2000 development tools.
Initial release: 2000

Frequently Asked Questions

Why convert FIG to PGX?

Sharing FIG files requires recipients to have Xfig installed. PGX bypasses that — your diagram becomes a standard image.

Where can I open PGX files?

You can open PGX files with JPEG 2000 reference software, OpenJPEG tools, and specialized image analysis applications.

Is FIG to PGX conversion free on Convertio?

Yes — Convertio offers free FIG to PGX conversion for standard use. Upload, convert, and download without any cost.

Can I convert FIG to PGX on a Mac?

Convertio is browser-based and works on Mac, Windows, Linux, and mobile. No platform restrictions for this conversion.

Do I need to install anything for FIG to PGX?

No — the converter runs entirely in your browser. No downloads, plugins, or extensions are needed for the conversion.

How accurate is FIG to PGX conversion?

Convertio processes each file carefully to produce faithful PGX output. Results match the source drawing as closely as possible.