SXW to PBM Converter

SXW to PBM — portable bitmap from legacy documents

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Simple Bitmap

PBM is the simplest image format — no headers or compression. Ideal for text document pages in processing pipelines.

Fast Results

PBM files are tiny and render quickly. Cloud servers deliver the conversion from SXW in just a few seconds.

Browser-Based

No software to install. Convert SXW to PBM entirely online from any device with a web browser and internet access.

How to convert SXW to PBM

1

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

2

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

3

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

About formats

SXW is the word processing document format used by StarOffice 6.0 and OpenOffice.org 1.0, developed by Sun Microsystems and released in 2002. The format was one of the first mainstream office document formats to adopt an XML-based architecture, packaging document content, styles, metadata, and embedded media in a ZIP archive — a structural approach that directly influenced the later OpenDocument Format (ODF). The content.xml file describes the document body using XML elements for paragraphs, headings, lists, tables, footnotes, and inline formatting, while styles.xml defines the styling rules and meta.xml carries document properties. SXW represented a significant milestone in open-source office software, demonstrating that a non-proprietary XML format could handle the full range of word processing features including change tracking, indexes, cross-references, and complex page layouts. One advantage was transparency and openness — the XML structure made document content inspectable, transformable, and processable using standard tools, a sharp contrast to the opaque binary formats dominant at the time. The format's role as a technological precursor to the ODF standard is another historical significance: the OASIS OpenDocument Technical Committee used the OpenOffice.org XML format (including SXW) as the starting point for developing ODF 1.0. While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.
Developer: Sun Microsystems
Initial release: 2002
PBM (Portable Bitmap) is the monochrome (black and white, 1-bit) member of the Netpbm family of image formats, created by Jef Poskanzer in 1988 as part of the Pbmplus toolkit for Unix systems. The format exists in two variants: ASCII (magic number P1), where each pixel is represented as a text character '0' (white) or '1' (black) separated by whitespace, and binary (magic number P4), where pixels are packed eight per byte for compact storage. Both variants begin with a plain-text header specifying the magic number, image width and height, and optional comments. PBM was designed as the simplest possible image format — a bridge format for converting between the many incompatible raster formats that proliferated across different Unix systems and applications during the 1980s. The Netpbm philosophy was to convert any source format to PBM/PGM/PPM as an intermediate step, then convert to the target format, using the portable formats as a universal exchange layer. One advantage is extreme simplicity — the ASCII variant can be literally typed by hand in a text editor, and both variants are trivial to parse and generate in any programming language without external libraries. The format's role as a universal image processing intermediate is another strength: hundreds of Netpbm command-line tools accept PBM input, enabling complex image manipulation pipelines through Unix pipes. PBM remains used in computer science education, OCR preprocessing, and any context where a dead-simple monochrome image representation is needed.
Developer: Jef Poskanzer
Initial release: 1988

Frequently Asked Questions

Why convert SXW to PBM?

PBM is a simple monochrome bitmap format — ideal for feeding document page images into Unix image processing pipelines.

What opens PBM files?

Netpbm tools, GIMP, IrfanView, XnView, and ImageMagick all handle PBM files. Most Unix/Linux image viewers support it.

Is PBM monochrome only?

Yes — PBM is a bi-level format (black and white). It works well for text-heavy SXW pages where color is not essential.

Is this free?

Standard SXW to PBM conversion is free on Convertio. Premium plans offer extended capacity for frequent conversions.

Does it work on all platforms?

Yes — the web converter runs in any modern browser on any OS. No installation or plugin is needed to use the tool.

How fast is conversion?

PBM files are very small. Conversion from SXW finishes quickly on cloud servers with no impact on your local device.