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WBMP to DJVU Converter

Embed WBMP images into DJVU documents — quick conversion

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Cross-Platform Access

Whether you are on a desktop, tablet, or phone — convert WBMP to DJVU from any device with a modern web browser.

Cloud Conversion

All WBMP to DJVU processing runs on Convertio servers — your device stays fast and free while the conversion happens in the cloud.

Effortless Process

Converting WBMP to DJVU takes just a few clicks — no technical knowledge required. Upload, choose your format, and download the result.

How to convert WBMP to DJVU

1

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

2

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

3

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

About formats

WBMP (Wireless Bitmap) is a monochrome (1-bit, black and white) image format defined as part of the Wireless Application Protocol (WAP) specification, developed by the WAP Forum (later consolidated into the Open Mobile Alliance) around 1998. The format was designed for the extremely constrained mobile devices of the late 1990s and early 2000s — phones with small monochrome screens, minimal processing power, and narrow bandwidth GSM data connections. WBMP uses the simplest possible encoding: a type identifier byte (always 0 for the only defined type), width and height encoded as multi-byte integers using a variable-length scheme, and the raw pixel data where each bit represents one pixel (0 for white, 1 for black) packed eight per byte. There is no compression, no metadata, and no color — the format is purely a minimal container for delivering small monochrome graphics to WAP-era mobile browsers. One advantage was extreme efficiency on constrained devices — WBMP images could be decoded with virtually zero CPU overhead and minimal memory, critical on early mobile hardware running at single-digit megahertz clock speeds. The tiny file sizes are another strength: a typical WBMP icon occupied just a few hundred bytes, practical for transfer over 9.6 kbps GSM data channels. While the WAP ecosystem has been entirely superseded by modern mobile web browsers capable of rendering full-color JPEG, PNG, and WebP images, WBMP files remain encountered in archived mobile content from that transitional era.
Developer: WAP Forum
Initial release: 1998
DjVu (pronounced "deja vu") is a document format developed at AT&T Labs by Yann LeCun, Leon Bottou, Patrick Haffner, and Paul Howard, first released in 1996. The format was specifically designed for storing scanned documents and images at very high compression ratios while maintaining visual quality suitable for on-screen reading. DjVu achieves this through a layered approach: the document image is separated into a foreground layer (text and line art at full resolution), a background layer (photographs and textures at reduced resolution), and a mask layer that determines which layer is visible at each pixel. This separation, combined with purpose-built compression algorithms for each layer type, typically produces files 5-10 times smaller than equivalent JPEG or PDF scans. One advantage is exceptional compression on scanned pages — a 300 DPI color scan that might occupy 25 MB as TIFF or 500 KB as JPEG typically compresses to 40-80 KB in DjVu while preserving legible text. The progressive rendering model is another strength: DjVu files stream efficiently over networks, displaying a readable low-resolution version almost immediately while progressively refining to full quality. The format supports multi-page documents, embedded text layers for searchability, hyperlinks, annotations, and a shared dictionary mechanism that further compresses collections of similar pages. DjVu is widely used by libraries and archives for digitized historical documents and manuscripts.
Developer: AT&T Labs
Initial release: 1996

Frequently Asked Questions

Why would I convert WBMP to DJVU?

DJVU is a compressed document format for scanned images. Wrapping your WBMP image in DJVU makes it easier to distribute, print, and archive alongside text content.

What programs open DJVU files?

Open DJVU using DjVu Browser Plugin, WinDjView, Sumatra PDF, Evince. Cross-platform support means you can access these files on virtually any system.

Is my WBMP file safe when converting online?

Your files are secure. Uploaded WBMP images are erased immediately after processing, and DJVU outputs are purged within 24 hours.

Can I convert multiple WBMP files to DJVU at once?

Absolutely. Batch upload your WBMP images and convert them all to DJVU in a single pass — no need to repeat the process for each file.

What platforms support this WBMP converter?

The converter works on any platform with a web browser — Windows, macOS, Linux, Android, and iOS all supported for WBMP to DJVU conversion.

What exactly is the WBMP format?

WBMP (monochrome bitmap from the WAP era for early mobile phones) originated in WAP mobile phones. It has very limited modern application support but can be converted to modern formats on Convertio.