JBG to PS Converter

Convert JBG compressed images to PS — free

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Cloud Conversion

The JBG to PS conversion runs on cloud servers — no strain on your device, no downloads needed.

Universal Output

Turn niche JBG files into universal PS format — viewable on every platform without special software.

Safe Conversion

Your JBG file is removed right after processing. The PS download is auto-deleted within 24 hours.

How to convert JBG to PS

1

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

2

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

3

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

About formats

JBG is a file extension for images compressed using the JBIG (Joint Bi-level Image experts Group) standard, formally ITU-T Recommendation T.82, completed in 1993 as a successor to the Group 3 and Group 4 fax compression standards. JBIG compression is designed for bi-level (black and white) images but can also handle grayscale and limited-color images by encoding each bit plane separately. The algorithm uses a form of arithmetic coding guided by an adaptive context model: for each pixel, the encoder examines a template of surrounding already-coded pixels to build a probability estimate, then feeds this estimate to a QM-coder (a variant of the Q-coder arithmetic coder) that produces a highly efficient binary output. JBIG achieves 20-40% better compression than Group 4 on typical document images, with the improvement being even larger on halftoned photographs and images with gradual density transitions where Group 4's simple run-length approach is less effective. The standard supports progressive encoding, where a low-resolution version of the image is transmitted first and progressively refined — useful for fax-like applications where the receiver can begin displaying the image before the full-resolution data arrives. One advantage is superior compression of documents containing halftone images: newspapers, magazines, and marketing materials that mix text with photographic halftones compress dramatically better with JBIG than with Group 3/4. The standard's ITU-T backing ensures it is implemented in document imaging hardware and software worldwide. JBG files are supported by ImageMagick and various document imaging tools.
Initial release: 1993
PS is the standard extension for files written in PostScript, the page description language created by Adobe Systems and first shipped in 1984 with the Apple LaserWriter. A PostScript file is a complete program that describes the precise appearance of a page — text, vector graphics, curves, fills, and even embedded raster images — using a stack-based interpreted language with full programming constructs. When sent to a PostScript-compatible printer or interpreter (such as Ghostscript), the program executes and produces rendered output. PostScript introduced cubic Bezier curves as the standard representation for smooth outlines, a mathematical model that became the foundation for virtually all subsequent vector graphics and font technology including PDF, SVG, and OpenType. The language also serves as a font format: Type 1 PostScript fonts encode glyph outlines as PostScript programs with hinting instructions for sharp rendering at low resolutions, while Type 3 fonts use the full language to define arbitrarily complex glyphs. One advantage is device independence — a PostScript file produces identical output whether rendered on a 300 dpi desktop printer, a high-resolution imagesetter, or a software rasterizer, because it describes shapes mathematically rather than as pixel grids. The human-readable text format provides another practical strength: PS files can be inspected, debugged, and modified with any text editor, and they can be generated programmatically by any software without requiring specialized libraries. PostScript files are widely handled by Ghostscript, Adobe Acrobat, preview applications, and numerous publishing and graphics tools.
Developer: Adobe Systems
Initial release: 1984

Frequently Asked Questions

Why convert JBG to PS?

Turn JBG bi-level images into PS for scalable vector graphics — ideal for professional design applications.

What reads PS format?

View PS files with Ghostscript, GSview, Adobe Acrobat, or Evince — all handle this format natively.

Does the converter preserve full JBG resolution?

All original clarity from JBG files is maintained. The PS output is pixel-accurate for monochrome content.

Are there fees for JBG to PS conversion?

No fees for standard use. Premium plans provide enhanced speed, higher limits, and priority queue access.

Is simultaneous JBG file conversion possible?

Yes — drop several JBG files at once. Each is processed and delivered as a separate PS download.

Does the converter work on mobile devices?

Yes — the JBG to PS converter is fully responsive. It works on phones, tablets, and any device with a browser.