Do You Need Text Recognition? Recognize text

OTB to DOC Converter

Online OTB to DOC — image to document in seconds

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Lightning Fast

OTB files are small and convert to DOC in seconds. The cloud-based engine handles the transformation quickly so you can download right away.

Cross-Platform Access

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

Image to Document

Convert legacy OTB images into DOC documents for professional distribution. Microsoft Word Document is recognized across all platforms.

How to convert OTB to DOC

1

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

2

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

3

Let the file convert and you can download your doc 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
DOC is the binary document format of Microsoft Word, the word processor first released in October 1983 for MS-DOS and later becoming the dominant document creation tool worldwide. The format stores documents as OLE2 compound document files — a binary container with multiple internal streams holding text content, formatting information, embedded objects, macros, and metadata. The text stream uses a complex system of formatting runs, section descriptors, paragraph and character property tables, and style definitions to represent arbitrarily complex document layouts including columns, headers, footnotes, tables, floating images, tracked changes, and mail merge fields. The format evolved substantially through Word versions, with Word 97 establishing the binary structure that remained standard through Word 2003 and created the .doc files most commonly encountered today. One advantage is near-universal compatibility — DOC files can be opened by virtually every word processor and document viewer across all platforms, from Microsoft Office to LibreOffice, Google Docs, and Apple Pages. The format's rich feature support is another strength: DOC handles complex layouts, embedded OLE objects, VBA macros, and revision tracking that power enterprise document workflows. Although Microsoft introduced the XML-based DOCX format with Office 2007, DOC remains heavily present in existing document archives and continues to be produced by organizations maintaining compatibility with older Word installations.
Developer: Microsoft
Initial release: October 1983

Frequently Asked Questions

What is the reason to convert OTB to DOC?

DOC is a classic Word document format. Wrapping your OTB image in DOC makes it easier to distribute, print, and archive alongside text content.

What apps support DOC?

You can view DOC with Microsoft Word, LibreOffice Writer, Google Docs, WPS Office. These tools cover all major desktop and mobile platforms.

Can I convert multiple OTB files to DOC at once?

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

Does converting OTB to DOC affect quality?

Your image content stays intact during conversion. Any differences depend on DOC characteristics — such as color depth or compression method.

What platforms support this OTB converter?

Convertio is entirely web-based. Convert OTB to DOC from Chrome, Firefox, Safari, Edge, or any modern browser on any operating system.