.snb

File format · Released 2010 · By Shanda Literature

About SNB Files

S-Note eBook

SNB (Shanda Bambook) is a proprietary ebook format developed by Shanda Interactive for their Bambook e-reader. It uses a ZIP-based container with XML content and was primarily used in the Chinese ebook market.

Family

eBooks

Extension

.snb

MIME Type

application/x-snb

Can Use As

Input

● Hex Magic-Bytes Signature (Offset 0x00) eBooks Binary/Text Stream

53 4E 42 46 00 01 00 00 4B 41 49 4A ASCII: SNBF....KAIJ

Convert SNB → PDF → 15+ CONVERSIONS ↓

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Lossless JPEG Q100 + standard COM segment padding for government & exam portals

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The story

HOW SNB CAME TO BE.

SNB was the ebook format used by Shanda Bambook, a Chinese ebook reader that Shanda Literature launched around 2010 to compete with Kindle in the Chinese market. SNB files wrap HTML-like content with Chinese-specific typography support, DRM, and Shanda’s store integration.

Shanda’s reader business folded when larger Chinese platforms (Tencent, Alibaba, JD) entered the ebook market. SNB lingers as a legacy format in Chinese ebook archives. Calibre supports SNB conversion.

ISO / MIME SPECS

Technical Specifications

MIME type: application/x-snb
Extension: .snb
Origin: Shanda Bambook (China)

Typical Sizes & Weights

Chinese novel

500 KB - 3 MB

STRENGTHS & LIMITATIONS.

Strengths

Chinese typography support.
Calibre-compatible.

Limitations

Deprecated.
Tiny ecosystem.
No new content.

CURIOSITIES & TRIVIA.

SNB was China's brief native ebook format before Tencent and Alibaba platforms dominated.

Shanda Literature was one of China's largest early online literature platforms — SNB was its delivery format.

Chinese typography in SNB supported vertical text layout — a feature many Western ebook formats lack.

Calibre reads SNB natively for legacy conversion to EPUB.

The format is effectively dead outside Chinese ebook archives.

STUDIO TOOLS FOR SNB

Specialized Utilities for .SNB Files

View all 45 tools →

merge →

Merge PDF

Combine multiple PDF files into a single document. Drag and drop to reorder pages before merging. No software installation required.

split →

Split PDF

Split a PDF into separate files by page ranges or extract individual pages. Perfect for isolating chapters, invoices, or specific sections.

compress →

Compress PDF

Reduce PDF file size without visible quality loss. Choose from low, medium, or high compression levels. Ideal for email attachments and web uploads.

convert →

PDF to Word Converter

Convert PDF documents into editable Microsoft Word (DOCX) files online for free while preserving layout, tables, and typography.

convert →

Word to PDF Converter

Convert Microsoft Word documents (DOCX, DOC) into print-ready PDF files with exact font embedding and layout preservation.

convert →

PDF to Excel Converter

Extract tables, financial rows, and structured columns from PDF files directly into editable Microsoft Excel (XLSX) spreadsheets.

ocr →

Make PDF Searchable (OCR)

Add a searchable text layer to scanned PDF documents using OCR. The visual appearance stays the same but you can now search, select, and copy text.

decrypt →

Unlock PDF

Remove owner printing/copying restrictions and decrypt password-protected PDF files instantaneously once you enter the known password.

CONVERT FROM SNB

snb pdf snb docx snb odt snb txt snb md snb html snb epub snb mobi snb azw3 snb fb2 snb rst snb htmlz snb txtz snb pdb snb lrf

CONVERT TO SNB

htmlz snb txtz snb pdb snb lrf snb

Common Use Cases

Chinese ebook market, Shanda Bambook devices, regional ebook distribution