WMF to SNB Converter

WMF to SNB — Shanda Bambook format, free online

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Bambook E-Reader

Convert WMF to SNB — the e-book format for Shanda Bambook readers popular in the Chinese market.

No Login Required

Convert WMF to SNB without creating an account. Just open the page and start converting.

File Security

WMF uploads are deleted after conversion. SNB downloads are purged from servers within 24 hours.

How to convert WMF 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

WMF (Windows Metafile) is a vector graphics format created by Microsoft, introduced with Windows 3.0 in May 1990 as the platform's native format for recording and replaying graphical operations. A WMF file captures a sequence of GDI (Graphics Device Interface) drawing commands — lines, rectangles, ellipses, polygons, text, and bitmap blits — in the order they were issued, serializing screen or printer output into a replayable file. The format uses a 16-bit coordinate space and organizes records as a linear stream of function calls with their parameters, preceded by a header specifying the bounding rectangle and resolution. WMF became deeply integrated into the Windows ecosystem as the default format for clip art collections, Office document graphics, and clipboard vector interchange during the 1990s — Microsoft Office shipped with thousands of WMF clip art images that defined a visual era of desktop publishing. One advantage is pervasive compatibility: virtually every Windows application from the past three decades can render WMF content, making it one of the most widely supported vector formats in existence. The lightweight recording model is another strength — WMF files are compact and render quickly because they replay native system drawing calls rather than interpreting a complex graphics language. While 16-bit limitations and lack of transparency and Bezier curves led Microsoft to develop EMF as a 32-bit replacement, WMF files remain ubiquitous in legacy documents and across current Windows software.
Developer: Microsoft
Initial release: May 22, 1990
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 WMF to SNB?

SNB is the e-book format for Shanda Bambook readers, popular in the Chinese market. Converting WMF to SNB packages graphics for Bambook devices and reading apps.

How do I open SNB files?

Shanda Bambook devices read SNB natively. On desktop, Calibre with SNB support and dedicated Chinese e-reader apps can open and manage SNB e-book files.

Is SNB supported outside China?

SNB is specific to the Shanda Bambook ecosystem, mainly Chinese. For international distribution, consider EPUB or PDF for much broader device compatibility.

Is WMF to SNB conversion free?

Yes — standard WMF to SNB conversions are free on convertio.tools. Premium plans offer expanded capacity and faster turnaround for bulk e-book production.

How quickly does the conversion finish?

Within seconds. Cloud servers handle format packaging remotely, so the process completes quickly without consuming resources on your local device.

Can I convert WMF to SNB on a mobile device?

Yes — Convertio is responsive and works in any mobile browser on Android or iOS. No app installation needed — just open the page and convert.