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.

3FR to XPM

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

3FR (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?

Reliable, format-aware conversion from Pentax 3FR raw images to XPM for archival and compatibility needs.

Raw to Raster Accuracy

Preserves raw sensor-derived tonal range when rasterized, minimizing unnecessary clipping or posterization.

Fast Local Processing

Client-side conversion avoids uploads and converts typical 3FR files quickly in-browser.

Legacy Compatibility

XPM output is suitable for legacy X Window System tools and simple editor ingestion.

Client-Side Privacy

Files are handled in transient memory buffers so images remain on your device during conversion.

Batch Friendly

Efficient pipeline for grouped 3FR sets, recommended in moderate batch sizes to limit memory pressure.

Customizable Export

Adjust resolution and color options to balance archival fidelity and XPM size constraints.

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	Raw lossless or compressed sensor data	Uncompressed ASCII/binary pixel map
File Size	Large (raw data retains sensor detail)	Generally larger or similar depending on header and encoding
Quality	High dynamic range, raw	Lossless pixel map but lower bit depth
Transparency	Not applicable to raw sensor data	Supported in some XPM variants
Metadata	Extensive EXIF/Proprietary tags	Minimal header fields; sidecar recommended
Primary Use	Professional editing and reprojection	Legacy GUI compatibility and simple viewers

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your 3FR files.

Adjust Settings

Choose output color space, optional alpha, and resolution settings.

Convert

Click convert to render raw sensor data into XPM pixels in-browser.

Download Result

Save the XPM files or a ZIP; retain original 3FR for archival fidelity.

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 3FR Sources

Verify native 3FR bit depth and apply desired demosaic settings before conversion to control highlight rolloff
Extract embedded EXIF to a sidecar to preserve original exposure and lens metadata absent from XPM
Convert RAW white balance in a controlled color space to avoid later color shifts in XPM consumers
Crop or rotate 3FR images prior to rasterization to reduce final XPM file size and CPU processing
Record camera model and firmware as part of archival notes because Pentax-specific tags may be lost

Configure XPM Output

Select 8-bit RGB target to match most XPM viewers and avoid unsupported 16-bit render paths
Enable optional alpha output only when consumer tools require transparency because it increases file complexity
Downscale large 3FR dimensions intentionally to limit XPM memory footprint for legacy viewers
Apply gentle dithering during bit-depth reduction to minimize banding from 12–14 bit to 8-bit channels
Choose sRGB rendering during conversion if target platforms lack profile handling to standardize appearance

Workflow Verification

Compare histogram of rendered XPM against 3FR-derived preview to ensure shadows retain detail post-quantization
Open converted XPM in the target application (GIMP, ImageMagick) to check gamma interpretation and color casts
Validate that any rendered lens corrections are visible in pixels since embedded correction parameters are not portable
Spot-check EXIF-critical fields in sidecars because XPM headers may not carry full camera tags
Maintain a conversion log with settings used per batch to reproduce archival copies reliably

System & Privacy Controls

Process batches of 20–50 3FR files to reduce browser memory spikes and preserve responsiveness
Keep originals locally; XPM is intended as compatibility copy, not a raw archival replacement
Close heavy background apps to free RAM for demosaic and color transform operations during conversion
Use secure local storage policies to avoid unintentional retention of large intermediate buffers
Download and verify outputs promptly; long browser sessions increase the chance of accidental data 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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