WBMP to PCD Converter

Turn your WBMP bitmaps into PCD format — fast and online

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Browser-Based Tool

No software to download — convert WBMP to PCD entirely in your web browser. Works on any device with an internet connection.

Cross-Platform Access

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

Format Upgrade

Move from WAP mobile era WBMP to the modern PCD format — enjoy multi-resolution photo format from Kodak and broad software compatibility.

How to convert WBMP to PCD

1

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

2

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

3

Let the file convert and you can download your pcd 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
PCD (Photo CD) is a proprietary image format developed by Eastman Kodak in partnership with Philips, launched in 1992 as a system for transferring 35mm film photographs to compact discs for digital viewing and printing. Each PCD file stores a single photograph at five different resolutions in a hierarchical structure called an Image Pac: Base/16 (192x128), Base/4 (384x256), Base (768x512), 4Base (1536x1024), and 16Base (3072x2048), with optional 64Base (6144x4096) on Pro Photo CD discs. Images are stored in Kodak's proprietary YCC color space (a variant of CIE Lab via the Photo YCC color model), which captures a wider gamut than sRGB, at 8 bits per component in the luminance channel and subsampled chrominance. The multi-resolution pyramid is encoded using a progressive scheme: the Base image is stored directly, and each higher resolution is stored as a residual (difference) that refines the upscaled previous level, keeping the total file size manageable. One advantage is the exceptional scan quality: Photo CD scans were performed on Kodak's professional PIW (Photo Imaging Workstation) scanners by trained operators, producing consistently excellent results from 35mm negatives and slides — often better than what contemporary consumer flatbed scanners could achieve. The multi-resolution structure is another notable feature: a single PCD file serves needs from thumbnail browsing to high-resolution printing without separate file versions. PCD files can be read by Adobe Photoshop, ImageMagick, GIMP (via plugin), IrfanView, and XnView, ensuring continued access to the millions of Photo CD images created during the format's commercial peak in the 1990s.
Developer: Eastman Kodak
Initial release: 1992

Frequently Asked Questions

Why convert WBMP to PCD?

WBMP is tied to WAP mobile phones. Switching to PCD gives you multi-resolution photo format from Kodak and broad support across platforms, browsers, and devices.

How do I open a PCD file?

Software that handles PCD includes IrfanView, XnView, ImageMagick, GIMP — giving you options on every major operating system.

Does this converter work on mobile devices?

The converter is browser-based and fully responsive. Convert WBMP to PCD from any device — desktop, laptop, tablet, or smartphone.

Does converting WBMP to PCD affect quality?

The conversion preserves the visual content of your WBMP image. PCD will reproduce the same pixel data within the limits of its format capabilities.

Can I convert multiple WBMP files to PCD at once?

Convertio supports batch mode — drag in multiple WBMP files and they all convert to PCD together, which is much faster than one-by-one.

Is WBMP to PCD conversion free?

Standard conversions are available for free on Convertio. Larger volumes or higher usage may benefit from a premium plan for additional capacity.