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G4 to XPS Converter

Transform fax documents to XPS format online free

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Document Recovery

Extract visual content from G4 files and save as XPS — ideal for archiving important fax correspondence.

Any Device Works

Access the G4 to XPS converter from desktops, laptops, tablets, and phones — fully browser-based.

Data Protection

Your G4 files are removed immediately after processing. Converted XPS output is purged within 24 hours.

How to convert G4 to XPS

1

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

2

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

3

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

About formats

G4 is a monochrome image format based on the ITU-T Group 4 facsimile coding standard (Recommendation T.6), ratified by the CCITT in 1984 as an improvement over Group 3 for use on error-free digital networks like ISDN rather than analog telephone lines. G4 files contain 1-bit image data compressed using exclusively two-dimensional Modified Modified READ (MMR) coding, where each scanline is encoded as a set of differences (changing elements) relative to the line above it. By eliminating the one-dimensional coding fallback and the end-of-line synchronization markers required by Group 3, G4 achieves 20-50% better compression ratios on typical document pages while producing a simpler, more regular bitstream. The format is most commonly encountered as a compression method within TIFF files (TIFF compression tag 4), where it became the standard archival format for scanned documents in enterprise document management, government records, and legal imaging systems. G4 compression is specified at 200, 300, or 400 dpi depending on the scanning application, with 300 dpi being the most common for archival-quality document imaging. One advantage is exceptional compression efficiency for document content: G4's two-dimensional prediction exploits the strong vertical correlation in text and line art pages, typically compressing a 300 dpi letter-size page to 30-50 KB — roughly half the size of equivalent Group 3 encoding. The format's entrenchment in document management infrastructure is another strength — G4 TIFF is the mandated format for many government digital records systems, court filing systems, and corporate archives, supported by every enterprise imaging platform.
Developer: ITU-T (CCITT)
Initial release: 1984
XPS (XML Paper Specification) is a fixed-layout document format developed by Microsoft, first released with Windows Vista and .NET Framework 3.0 in November 2006. Conceived as Microsoft's alternative to Adobe's PDF, XPS uses XML-based page description markup within a ZIP-based Open Packaging Conventions container. Each page is described as a FixedPage element containing paths (vector shapes with fill and stroke), glyphs (text positioned at precise coordinates), images, and canvas groupings — all specified with exact coordinates for pixel-precise rendering. The format embeds all required resources: fonts are subset and included, images are stored within the package, and the complete rendering specification travels with the document. Windows includes the XPS Document Writer as a virtual printer, allowing any application to generate XPS output through the standard print dialog. One advantage is exact visual fidelity — XPS documents render identically on any compliant viewer because every element is positioned absolutely, with no interpretation variance. Native Windows integration is another strength: XPS viewing, creation, and printing are built into Windows without additional software, and the .NET Framework provides APIs for programmatic XPS generation. While XPS did not achieve the ubiquity of PDF as a universal document format, it remains used in Windows printing infrastructure, enterprise document workflows, and scenarios where the Windows platform provides native end-to-end support.
Developer: Microsoft
Initial release: November 2006

Frequently Asked Questions

Why convert G4 to XPS?

Turning G4 files into XPS enables editing, searching, and sharing — tasks impossible with raw fax image formats.

What can open XPS format?

View XPS files with XPS Viewer on Windows, Evince on Linux, or Okular — all handle this format natively.

Does converting G4 degrade quality?

The XPS output faithfully reproduces all content from the G4 source — quality is not compromised.

Can I use this converter at no cost?

Free for regular use. Premium plans unlock faster conversion speeds and larger batch processing limits.

Is multi-file G4 conversion supported?

Yes, batch processing works. Upload as many G4 files as needed and each becomes a separate XPS output.

What platforms support this converter?

The converter works in any modern web browser — Windows, macOS, Linux, Android, iOS. No installation required.