PFB to RGB Converter

Render PFB fonts as SGI RGB images — free and online

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SGI Heritage

RGB is the native format of Silicon Graphics workstations — produce PFB font images that professional 3D and VFX tools recognize instantly.

Font to Texture

Render PFB glyph outlines into SGI RGB images usable as font textures in 3D scenes and visualization environments.

Fast Results

RLE-compressed SGI output is generated quickly — your PFB to RGB conversion is ready for download in seconds.

How to convert PFB 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

PFB (Printer Font Binary) is the compact binary representation of Adobe's PostScript Type 1 font format, introduced alongside PFA in 1984. Where PFA stores the entire font program as hex-encoded ASCII text, PFB wraps the same data in a lightweight binary container that uses segment headers to mark regions as ASCII or binary. The encrypted glyph outline section (eexec) is stored as raw bytes rather than hex characters, cutting the file size roughly in half compared to PFA. Each segment begins with a marker byte and a 32-bit length field, making the format simple to parse while still significantly more compact. PFB became the dominant Type 1 distribution format on Windows and DOS platforms, used in combination with PFM (Printer Font Metrics) or AFM files that supply the character width and kerning data needed for text layout. One advantage is storage and transfer efficiency — the binary encoding means a typical text font occupies 30-50 KB rather than the 60-100 KB its PFA equivalent would require. The segmented structure also allows PostScript interpreters to stream font data efficiently, processing ASCII and binary portions with their respective handlers. Adobe Type Manager (ATM) on Windows relied on PFB files to render smooth Type 1 text on screen, a capability that transformed desktop publishing on the PC platform. While OpenType fonts have largely replaced Type 1 for new work, PFB files persist in established print workflows, archival font libraries, and systems that depend on PostScript output.
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 PFB to RGB?

SGI RGB format is native to Silicon Graphics workstations and many 3D/VFX tools — converting PFB provides font textures for professional visualization pipelines.

How to open RGB?

RGB (SGI) files open in Photoshop, GIMP, Blender, XnView, ImageMagick, and most professional 3D and compositing applications.

Is SGI RGB the same as raw RGB data?

No — SGI RGB is a structured image format with headers and optional RLE compression, developed by Silicon Graphics for their IRIX workstations.

Does SGI RGB support alpha?

The base RGB format stores three channels. For alpha support, use the RGBA variant which adds a fourth transparency channel.

Is the conversion free?

Yes — Convertio provides free PFB to RGB conversion online, no registration or desktop software required.