What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

JBG to DDS

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

JBG (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Fast, browser-based conversion from legacy JBG images to GPU-ready DDS textures for games and pipelines.

Fast Decoding Path

Directly decode JBG scanline data in browser memory for quick conversion to DDS textures.

Preserve Visual Detail

ConvertXLab focuses on keeping luminance and edge fidelity from JBG raster content when producing DDS.

GPU-Friendly Output

DDS outputs use common GPU formats enabling immediate import into engines and game editors.

Batch Conversion

Process multiple JBG frames or images in grouped jobs to prepare large texture sets efficiently.

Client-Side Processing

Conversions occur in the browser runtime so original JBG files do not need to be uploaded to servers.

Configurable Targets

Choose DDS compression target (uncompressed RGBA or block-compressed formats) to match your workflow.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC	EXIF, ICC
Primary Use	Web delivery	Editing & print

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source files.

Adjust Settings

Choose resolution or color options if needed.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted files or ZIP archive.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare JBG Scan Structure

Identify bi-level versus grayscale JBG and choose matching DDS channel layouts
Convert separate mask scans into an explicit alpha channel before DDS encoding
Deskew and despeckle scanner artifacts to reduce block-compression artifacts in DDS
Normalize contrast so BC formats do not amplify halftone patterning
If JBG contains multiple scan passes, merge them to avoid inconsistent pixel mapping

Target DDS Encoding Choices

Select uncompressed RGBA for lossless editing after expanding JBG bit depth
Use BC1 for opaque mono graphics to minimize DDS size with acceptable fidelity
Choose BC3 or BC7 when preserving alpha from synthesized masks yields better results
Generate mipmaps in DDS when textures will be used at varying distances in engines
Prefer BC7 for photographic grayscale-to-color conversions to reduce blocking

Verify in Target Platform

Test converted DDS in your engine (Unity/Unreal) to confirm DXGI format support
Check gamma and linear workflow differences if your renderer expects linear textures
Inspect alpha edges at 100% zoom to ensure mask conversion yielded correct translucency
Compare file dimensions and padding to avoid unexpected texture atlas seams
Open DDS in DirectX Texture tools to confirm compression blocks and mip levels

Workflow Reliability & Privacy

Process sensitive JBG files client-side to avoid server-side retention of scans
Batch in 20–50 file groups to limit browser memory spikes during DDS block compression
Close heavy GPU apps when running conversions to keep browser encoding stable
Store source JBG originals unaltered to reprocess with different DDS settings later
Download and validate converted DDS promptly to prevent accidental local cache loss

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

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