PS to RGB Converter

PostScript to SGI RGB image format — free online

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High-Quality Output

SGI RGB stores your PostScript render with full color fidelity and optional alpha channel — professional-grade image quality.

Server-Side

PS to RGB conversion runs on Convertio servers. No Silicon Graphics workstation or special software needed locally.

Fast Turnaround

Get your SGI RGB file in seconds. Cloud processing keeps conversion fast regardless of PostScript complexity.

How to convert PS to RGB

1

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

2

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

3

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

About formats

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
RGB is a raw (headerless) image format that stores pixel data as a flat sequence of red, green, and blue sample values with no container structure, compression, or metadata. Each pixel is represented by three consecutive bytes (in 8-bit mode) — one for red intensity, one for green, and one for blue — written in scanline order from the top-left corner of the image to the bottom-right. Because there is no header, the image dimensions and bit depth must be specified externally when reading the file. The format supports multiple bit depths: 8-bit (0-255 per channel), 16-bit (0-65535 per channel), and floating-point variants, with 8-bit being the most common. The RGB color model itself reflects how display hardware produces color — by mixing red, green, and blue light at varying intensities — and raw RGB files represent this model in its most direct digital form. With 8-bit channels, three bytes per pixel yield a 24-bit color palette capable of representing 16,777,216 distinct colors. One advantage is zero-overhead processing: without headers or compression to parse, raw RGB data can be memory-mapped, fed directly into GPU textures, or piped between processing stages with minimal latency — valuable in real-time imaging, scientific instrumentation, and computer vision pipelines where every millisecond matters. The format's universal simplicity provides another practical strength — any programming language can read or write raw pixel data with just basic file I/O, making it a reliable interchange format between custom software that may not share support for structured image containers. Raw RGB files are handled by ImageMagick, FFmpeg, and various scientific and graphics tools.
Initial release: 1990

Frequently Asked Questions

Why convert PS to RGB?

SGI RGB is a high-quality image format from Silicon Graphics. Converting PS to RGB creates images for SGI-compatible workflows.

What programs open RGB files?

SGI RGB opens in GIMP, Photoshop, IrfanView, XnView, and applications that support the Silicon Graphics image format.

Does RGB support alpha channels?

Yes — SGI RGB can include an alpha channel for transparency. The format supports 8 to 16 bits per channel.

Is PS to RGB free?

Convertio provides free PS to RGB conversion. Premium plans unlock higher file size limits and faster processing.

Is SGI RGB the same as raw RGB data?

SGI RGB is a specific file format with headers and optional RLE compression — not raw pixel data.