PCX to SNB Converter

PCX to SNB e-book conversion — free and online

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

Secure Processing

Your PCX files are deleted immediately after conversion. SNB outputs are removed from servers within 24 hours — your images stay private.

Format Bridge

Bridge the gap between PCX and modern formats. The converter handles the technical translation so you get a clean SNB file.

Cross-Platform

Works on Windows, macOS, Linux, iOS, and Android. Convert PCX to SNB from whichever device you have at hand — no restrictions.

How to convert PCX to SNB

1

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

2

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

3

Let the file convert and you can download your snb 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
SNB is a proprietary ebook format developed by Shanghai Nutshell Electronics, a subsidiary of Shanda Interactive Entertainment, for the Bambook e-reader launched in August 2010. The format is structurally based on EPUB principles, packaging HTML content, CSS styling, images, and metadata within a compressed archive, but uses a proprietary container that restricts native playback to Bambook devices and associated software. Shanda designed the Bambook and its SNB ecosystem as an integrated reading platform tied to the Cloudary literature portal (later rebranded as China Literature), one of China's largest online publishing networks hosting millions of web novels and serialized fiction. The format supported reflowable text, chapter navigation, bookmarks, and basic typographic controls suited to Chinese-language content display. One advantage was tight integration with Shanda's massive content catalog, providing readers instant access to an enormous library of Chinese-language literature directly through the device. The Bambook was initially offered at a heavily subsidized price point, using the content ecosystem to drive revenue — a model that preceded similar strategies by other e-reader manufacturers. While the Bambook hardware line was eventually discontinued as the Chinese market shifted toward tablet-based reading apps, SNB files from that era can be converted to standard formats using tools like Calibre with appropriate plugins. The format represents an interesting case study in platform-specific ebook ecosystems within the Chinese digital publishing landscape.
Initial release: August 2010

Frequently Asked Questions

Why convert PCX to SNB?

PCX was designed for 1980s PC software. Converting to SNB modernizes the file so it works with contemporary tools, browsers, and operating systems.

What programs open SNB files?

Samsung devices (S Note app), and Calibre e-book manager for conversion purposes.

Can I read the SNB on my e-reader?

Yes — download the SNB file and transfer it to your e-reader or reading app. Most modern e-readers support the SNB format natively.

What platforms are supported?

Any device with a web browser — Windows, macOS, Linux, iOS, Android, and Chrome OS. No software installation is needed for the conversion.

Are my files secure during conversion?

All file transfers use encrypted connections. Uploaded PCX files are deleted after processing, and SNB outputs are purged within 24 hours.

Is the original resolution preserved?

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