OTB to PICT Converter

Browser-based OTB to PICT converter for image migration

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Modern Format Output

PICT provides legacy Apple Macintosh graphic format — a significant upgrade over the legacy OTB format for everyday image use and sharing.

Secure Processing

Uploaded OTB images are erased right after conversion, and the resulting PICT files are purged within 24 hours — your data stays private.

Cross-Platform Access

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

How to convert OTB to PICT

1

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

2

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

3

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

About formats

OTB (Over-the-Air Bitmap) is a monochrome image format developed by Nokia as part of their Smart Messaging specification in 1997, designed for transmitting small graphics — operator logos, group graphics, and picture messages — to Nokia mobile phones via SMS. OTB files contain 1-bit (black and white) images at small fixed resolutions, typically 72x14 pixels for operator logos and 72x28 pixels for group graphics, encoded in a compact binary format suitable for embedding within the payload of SMS text messages. The format uses a simple structure: a header byte indicating whether the image is an operator logo or group graphic, width and height values, and the raw bitmap data where each bit represents one pixel packed eight per byte. The extremely tight format — designed to fit within a single SMS message (140 bytes maximum payload, shared with addressing overhead) — reflects the severe constraints of mobile communication in the late 1990s. Nokia's Smart Messaging system was one of the first commercial implementations of rich content delivery to mobile phones, and OTB images represented the entire visual content capability of Nokia handsets before MMS and mobile data browsing arrived. One advantage is the format's historical role as a pioneer of mobile visual messaging: OTB images were among the first graphics that ordinary consumers could send to each other's phones, predating MMS, camera phones, and smartphones by nearly a decade. The format's minimal footprint is another characteristic — entire images fit in a few dozen bytes, reflecting an era of extreme bandwidth constraints. OTB files are supported by ImageMagick, various Nokia phone management tools, and specialty mobile format utilities.
Developer: Nokia
Initial release: 1997
PICT is a metafile graphics format created by Apple Computer as the native graphics format for the Macintosh, debuting alongside the original Mac in January 1984 and remaining central to Mac OS graphics until the transition to Mac OS X. PICT files record a series of QuickDraw operation codes (opcodes) that reproduce the image when replayed through the QuickDraw graphics engine: operations for drawing lines, arcs, rectangles, rounded rectangles, ovals, polygons, regions, text strings, and pixel maps (bitmaps). This opcode-based approach means PICT files are not simply pixel grids but rather programmatic descriptions of how to draw the image, combining resolution-independent vector elements with pixel data in a unified stream. The PICT 2 revision, introduced with the Macintosh II and Color QuickDraw in 1987, extended the format to handle 24-bit color, multiple pixel depths, extended color spaces, and embedded JPEG and PackBits compressed data. PICT was integral to the Macintosh user experience: system clipboard operations (Copy/Paste), screen capture, printing, and inter-application data exchange all used PICT as the common visual representation. One advantage is historical comprehensiveness: PICT files from the classic Mac era capture both the visual output and the drawing methodology of Mac applications, preserving not just the image but the QuickDraw operations that produced it — valuable for understanding the visual computing paradigm of early Macintosh software. The format's extensive use in desktop publishing during the DTP revolution of the late 1980s provides another dimension of historical importance. PICT files are readable by macOS Preview), ImageMagick, XnView, LibreOffice, and GraphicConverter.
Developer: Apple Computer
Initial release: 1984

Frequently Asked Questions

What is the reason to convert OTB to PICT?

OTB is an Over-The-Air bitmap format for early Nokia phones with limited modern support. Converting to PICT (legacy Apple Macintosh graphic format) makes your images accessible on any modern platform.

Which software can view PICT files?

PICT files can be opened with macOS Preview (legacy), XnView, IrfanView, GIMP. Most of these are available across Windows, macOS, and Linux.

What exactly is the OTB format?

The OTB format is an Over-The-Air bitmap format for early Nokia phones, rooted in Nokia mobile phones. Modern software rarely supports it natively, making conversion essential.

Is OTB to PICT conversion free?

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

Can I convert multiple OTB files to PICT at once?

Yes — upload several OTB files in one session and Convertio processes them all into PICT simultaneously, saving you time.