JPS to G4 conversion is the process of transforming a stereoscopic JPEG Photo (JPS) image, which stores left/right views in a single JPEG-format file, into the G4 image format, a raster image variant often used for lossless or high-efficiency archival and transmission. This conversion re-encodes the JPS pixel data and metadata into the G4 container and compression scheme so the image can be opened by G4-compatible viewers or workflows.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Not sure whether to save your image as PNG or JPG? This detailed comparison covers compression, transparency, file size, web performance, and real-world use cases so you can pick the right format every time — with conversion links when you need to switch.
Read guide →Learn how to convert HEIC to JPG for maximum compatibility. This guide explains what HEIC is, why iPhones use it, the key differences between HEIC and JPG, and walks through every conversion method including online tools, iPhone settings, Windows, and Mac.
Read guide →Drag your .JPS file from your computer or use the browse function.
Confirm .g4 as the selected destination format.
Click "Convert" and download your converted .G4 file once ready.
JPS files usually have the MIME type image/x-jps and are based on JPEG standards with side-by-side images. G4 files use the MIME type image/g4 and employ Group 4 fax compression, which is a lossless compression method ideal for black and white images. G4 is commonly used in fax machines and document scanning applications.
The G4 (.G4) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like JPS.
While specific technical details aren't available here, G4 files generally serve the purpose of storing image effectively within their domain.
Easily convert your JPS files to the G4 format using our online converter. Designed for speed and quality preservation, our tool simplifies the process without requiring any software installation.
JPS files are typically used for stereoscopic 3D images and contain dual perspectives, whereas G4 is a compression format optimized for monochrome images like faxes. While JPS focuses on 3D image representation, G4 prioritizes efficient compression and smaller file sizes. Choosing G4 is ideal for document archiving and transmission.
Keep individual JPS files under 10–25 MB for faster web-based conversion and smoother previews; larger files can be processed but take longer.
To preserve visual quality, choose G4 lossless output and use a high or default compression setting rather than aggressive high-compression modes.
For bulk workflows, convert in batches of 10–50 files depending on your system memory; use command-line or desktop tools for large-scale automated conversion.
Note format-specific limitations: JPS is a side-by-side stereo JPEG and may contain combined view data; G4 does not inherently preserve stereo semantics—if you need to keep left/right separation, extract and store channels separately before conversion.
The online JPS to G4 converter saved me so much time on file management.
Emma R.
Photographer
Reliable and easy to use, perfect for quick conversions.
Mark L.
IT Specialist
Keeps image quality intact while compressing files efficiently.
Linda S.
Archivist
Start your free JPS to G4 conversion now.
Drag your file here to to upload.
Up to 250MB
If maintaining metadata is important, enable EXIF/XMP preservation; some web converters may strip metadata by default for privacy reasons.