Convert PTX to TIFF — Free Online Converter
Convert Pentax Raw (.ptx) to Tagged Image File Format (.tiff) online for free. Fast, secure image conversion with no watermarks or registration....
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How to Convert
Upload your .ptx file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .tiff file when it's ready.
About PTX to TIFF Conversion
TIFF (Tagged Image File Format) is the professional standard for archival-quality image storage and print production. Converting Pentax PTX RAW files to TIFF preserves the developed sensor data at maximum quality with lossless compression and full metadata support. For Pentax *ist series photographers, TIFF provides the highest-fidelity preservation format for processed images.
The Pentax *ist cameras captured 6-10 megapixels from CCD and CMOS sensors with Pentax's distinctive warm color rendering. TIFF at 16-bit depth preserves this color character with full dynamic range — critical for archival of photography from cameras that can no longer be replicated (Pentax has discontinued the *ist series and Samsung has exited cameras entirely).
Why Convert PTX to TIFF?
TIFF is universally accepted by professional print labs, publishers, museums, and archival institutions. It supports 16-bit depth (preserving the full tonal range from PTX sensor data), lossless LZW or ZIP compression, embedded ICC color profiles, and comprehensive EXIF/IPTC metadata. No other raster format combines this breadth of professional features.
As PTX support in RAW processors declines, converting to 16-bit TIFF creates the highest-quality permanent copy of your processed Pentax photography. The resulting files are accepted by every professional workflow from fine art printing to museum digital archives.
Common Use Cases
- Archive Pentax *ist D photography at maximum quality for permanent preservation in TIFF
- Deliver Pentax photographs to fine art print labs requiring 16-bit TIFF input
- Create archival master copies of Samsung GX-1S product photography sessions
- Prepare Pentax outdoor photography for museum digital collections in TIFF format
- Submit Pentax *ist DS2 captures to publishers requiring professional TIFF deliverables
How It Works
The conversion reads the PTX Bayer data, performs demosaicing with Pentax's color matrix and white balance, then writes TIFF at 8-bit or 16-bit depth with LZW or ZIP lossless compression. ICC profiles can be embedded for color management. A 6 MP Pentax *ist D at 16-bit uncompressed is approximately 36 MB; LZW compression reduces this to 20-25 MB. The 10 MP *ist DS2 produces proportionally larger files.
Quality & Performance
TIFF with lossless compression preserves the complete processed image data without any quality loss. At 16-bit depth, the full tonal range from Pentax's 12-14 bit sensors is preserved with headroom for post-processing adjustments. This is the highest-quality conversion available from PTX RAW files — the definitive preservation format for Pentax *ist series photography.
Device Compatibility
| Device | PTX | TIFF |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Tips for Best Results
- 1Always use 16-bit TIFF for archival of PTX files — it preserves maximum tonal range for future editing
- 2Enable LZW compression to reduce TIFF file sizes by 30-40% without any quality loss
- 3Embed the ICC color profile in the TIFF for consistent color reproduction across different systems
- 4Pentax's warm color character is fully preserved in TIFF — no adjustment needed unless preferred
- 5Create both TIFF masters and JPEG copies: TIFF for archival quality, JPEG for sharing and web use
PTX to TIFF provides the ultimate archival conversion for legacy Pentax and Samsung GX camera archives. With 16-bit depth and lossless compression, it preserves the warm Pentax color character and full sensor detail in a format guaranteed to remain supported by professional software indefinitely.