PCX to RGBA Converter

Online PCX to RGBA image converter — free to use

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Wide Compatibility

Convert PCX to RGBA and dozens of other formats. Convertio supports hundreds of conversion directions for maximum flexibility.

Privacy Protected

Convertio removes uploaded PCX files right after processing and purges RGBA results within 24 hours. Your data does not linger on servers.

Cloud-Powered

The PCX to RGBA conversion runs on cloud servers — your device stays unburdened while the processing happens remotely and efficiently.

How to convert PCX to RGBA

1

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

2

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

3

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

About formats

PCX (PiCture eXchange) is a raster image format created by ZSoft Corporation in 1985 as the native format of their PC Paintbrush application, one of the first painting programs for IBM PC compatibles. The format uses a simple run-length encoding (RLE) compression scheme that works by replacing consecutive identical pixel values with a count-value pair, achieving modest compression on images with large areas of uniform color. A PCX file consists of a 128-byte header (specifying dimensions, color depth, palette information, DPI, and encoding method), the RLE-compressed pixel data organized in scan-line order, and an optional 256-color palette appended after the image data. The format evolved through several versions supporting increasing color depths: 1-bit monochrome, 4-bit (16 colors), 8-bit (256 colors), and 24-bit true color using multiple color planes. PCX became one of the most popular image formats during the DOS era, widely supported by paint programs, word processors, desktop publishers, and early games throughout the late 1980s and early 1990s. One advantage was broad DOS-era software compatibility — PCX served as a practical interchange format when competing programs used proprietary raster formats. The simplicity of RLE decoding is another strength, requiring minimal CPU and memory resources ideal for the hardware of that period. While PNG, JPEG, and other modern formats have replaced PCX in contemporary use, the format remains encountered in legacy archives and retro computing contexts.
Developer: ZSoft Corporation
Initial release: 1985
RGBA is a raw (headerless) image format that extends the RGB color model with a fourth channel for alpha transparency. Each pixel is stored as four consecutive sample values — red, green, blue, and alpha — written sequentially in scanline order with no container structure, headers, or compression. The alpha channel specifies opacity for each pixel independently: a maximum value means fully opaque, zero means fully transparent, and intermediate values produce semi-transparency. Like its three-channel counterpart, RGBA files require the image dimensions and bit depth to be specified externally since the raw data stream contains no metadata. The format supports 8-bit (four bytes per pixel, 32-bit total), 16-bit, and floating-point channel depths. In compositing workflows, the alpha channel enables layering operations where foreground elements are blended over backgrounds according to their per-pixel opacity — the mathematical foundation for all modern image compositing, described by Porter and Duff in their seminal 1984 paper on digital compositing. One advantage is direct framebuffer compatibility: modern GPU hardware natively processes 32-bit RGBA pixels, so raw RGBA data can be uploaded to texture memory or written from render targets without any format conversion, critical for real-time graphics applications and game engines. The format's simplicity in representing transparent images provides another practical benefit — scientific visualization, medical imaging, and overlay rendering can produce raw RGBA output that any downstream tool can consume without needing a common container format. RGBA files are handled by ImageMagick, FFmpeg, and various graphics and compositing tools.
Initial release: 1990

Frequently Asked Questions

Why convert PCX to RGBA?

PCX dates back to early PC graphics. Converting to RGBA brings your image into a format that modern devices and applications recognize without issue.

What software opens RGBA?

GIMP, Blender, IrfanView, and 3D rendering software. RGBA adds transparency channel support to the SGI format.

Do I need to install anything?

No — the entire conversion runs in your web browser. There is nothing to download or install on your computer or phone to convert PCX to RGBA.

How long does PCX to RGBA conversion take?

Most conversions finish in seconds. Processing time depends on file size and server load, but standard images are typically converted almost instantly.

Does converting PCX to RGBA lose quality?

The conversion preserves the quality stored in the original PCX file. No additional degradation occurs during the format change on Convertio.

Is the original resolution preserved?

Yes — the pixel dimensions of your PCX image are maintained in the RGBA output. No downscaling or cropping happens during conversion.