SNB to PPSM Converter

Convert Bambook SNB to PPSM macro slide show

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Macro Slide Show

Turn SNB ebook content into PPSM — a self-playing presentation format with VBA macro support for automation.

Secure Files

Uploaded SNB ebooks are deleted after conversion. PPSM output files are removed from servers within 24 hours.

Server-Side Work

All processing runs remotely on Convertio cloud infrastructure — your computer stays fast and unloaded.

How to convert SNB to PPSM

1

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

2

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

3

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

About formats

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
PPSM (PowerPoint Slideshow with Macros) is a macro-enabled slideshow format in Microsoft PowerPoint, introduced with Office 2007 as part of the Office Open XML family. PPSM combines the auto-play slideshow behavior of PPSX with the VBA macro capabilities of PPTM — opening a PPSM file launches it directly into full-screen presentation mode while allowing embedded macro code to execute during the slideshow. The format is structurally a ZIP archive containing the same XML slide parts as other OOXML presentation formats, plus a vbaProject.bin stream housing the VBA project. This combination is particularly valuable for interactive presentations: macro-driven slideshows can respond to user input, navigate non-linearly between sections, query external databases, update content in real time, and log audience responses during training or assessment sessions. One advantage is interactive presentation capability — PPSM enables quiz-style presentations where clicking answer buttons triggers immediate scoring feedback, branching paths, or data recording, all invisible to the audience. The macro-enabled slideshow format also supports self-contained automation: a PPSM file can run initialization routines on launch, configure the display environment, and clean up resources on exit without any manual intervention. As with all macro-enabled Office Open XML formats, the distinct .ppsm extension helps administrators enforce security policies that differentiate between trusted macro content and standard presentations. PPSM is supported exclusively in Microsoft PowerPoint desktop editions.
Developer: Microsoft
Initial release: January 30, 2007

Frequently Asked Questions

Why convert SNB to PPSM?

SNB is restricted to Bambook hardware. PPSM creates an auto-playing slide show that also supports VBA macros for advanced automation.

What plays PPSM files?

Microsoft PowerPoint 2007 and later runs PPSM slide shows natively. LibreOffice Impress and WPS Presentation also provide support.

Does PPSM auto-start?

Yes, PPSM files open directly in presentation mode. They combine auto-play functionality with macro-enabled capabilities.

Can macros be added?

Yes, open the PPSM in PowerPoint to add or modify VBA macros that execute during the slide show presentation.

Is this conversion free?

Convertio handles SNB to PPSM conversion entirely free of charge. No account or software installation required.