WBMP to PCT Converter

WBMP to PCT conversion — modern image format in seconds

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Cross-Platform Access

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

Cloud Conversion

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

No Install Required

The entire WBMP to PCT conversion happens in your browser. No plugins, no desktop apps — just upload, convert, and download.

How to convert WBMP to PCT

1

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

2

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

3

Let the file convert and you can download your pct 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
PCT (also known as PICT) is a metafile graphics format originally developed by Apple Computer and introduced alongside the original Macintosh in January 1984. PCT files can contain both vector drawing commands and raster bitmap data, encoded as a sequence of QuickDraw drawing operations — the same graphics primitives used by the Macintosh operating system for all on-screen rendering. The format evolved through two major versions: PICT 1, which recorded basic QuickDraw operations (lines, rectangles, ovals, text, 1-bit bitmaps) in a compact format suitable for the original Macintosh's limited memory, and PICT 2, introduced with Color QuickDraw in 1987, which extended the format to support 24-bit color, multiple color spaces, and embedded JPEG-compressed data. PCT files begin with a 512-byte header (originally used for resource fork information), followed by the picture size, bounding rectangle, and a sequence of opcodes that define the drawing operations. During the Macintosh's commercial ascendancy, PICT was the universal graphics interchange format on Mac OS — the system clipboard used PICT for all graphical copy/paste operations, and most Mac applications could import and export the format. One advantage is the hybrid vector/raster nature: PCT files from the QuickDraw era preserve both scalable drawing commands and pixel data in a single format, enabling resolution-independent output for the vector portions. PICT's historical significance as the native Mac graphics format throughout the classic Mac OS era (1984-2001) provides another dimension. PCT files remain readable by Preview) on macOS, ImageMagick, XnView, LibreOffice, and GIMP.
Developer: Apple Computer
Initial release: 1984

Frequently Asked Questions

What is the reason to convert WBMP to PCT?

Few modern tools handle WBMP natively. PCT provides legacy Macintosh image format, making it widely recognized across operating systems and applications.

What programs open PCT files?

Open PCT using macOS Preview (older versions), XnView, IrfanView, GIMP. Cross-platform support means you can access these files on virtually any system.

Does converting WBMP to PCT affect quality?

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

How long does WBMP to PCT conversion take?

Conversion is nearly instant for most WBMP files. Since these are small images, the entire process — upload to download — takes only moments.

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.

Does this converter work on mobile devices?

Yes — Convertio runs entirely in the browser. You can convert WBMP to PCT on phones, tablets, or desktops without installing anything.