PGX to FIG Converter

Turn PGX images into scalable FIG online

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One-Click Retrieval

Download your FIG result as soon as the conversion ends. The output stays available for a full day if you need to grab it later.

Quick Turnaround

The converter processes PGX images rapidly. Most PGX to FIG conversions finish within moments of starting.

Private and Secure

Your PGX files are deleted right after conversion, and FIG outputs are erased within 24 hours. Your data remains entirely confidential.

How to convert PGX to FIG

1

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

2

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

3

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

About formats

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
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

Frequently Asked Questions

Why convert PGX to FIG?

Converting PGX to FIG produces editable vector artwork from raster originals — useful for design workflows and print production.

What programs open FIG files?

Use Adobe Illustrator, Inkscape, or CorelDRAW to open and edit FIG vector files. LibreOffice Draw also provides basic support.

What makes PGX files different?

PGX is a deliberately simple, single-component raw image format. Its sole purpose is providing unambiguous test data for JPEG 2000 compliance.

How is image quality handled during conversion?

The converter extracts full image data from PGX and encodes it into FIG at the highest quality the target format allows. No unnecessary loss.

Do I need to install anything?

No installation needed — the conversion happens entirely online. Open the converter in any modern web browser and your device handles the rest.