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.ptx

PTX file: what it is and how to open it

Two unrelated programs use .ptx.

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Before
RAF

DSCF0014.RAF

15.2 MB

Camera RAW: large, hard to share

AfterDaffodils in a garden bed: the JPG Contenta Converter made from a Fujifilm RAF file

DSCF0014.jpg

2.8 MB · 3664×2742 · 0.6 s

JPG: opens everywhere

Real output from Contenta Converter: one Fujifilm RAF file of 15.2 MB became a 3664 x 2742 JPG of 2.8 MB in 0.6 seconds on a desktop PC.
  1. Add your PTX filesDrop in single files or a whole folder.
  2. Pick output formatJPG, PNG, TIFF, PDF and more.
  3. Click ConvertEvery file converted in one pass.

From a camera card, it is a Pentax RAW photo from an older Pentax camera. From a music or video project, it is an Avid Pro Tools session, which only Pro Tools opens. Contenta Converter converts Pentax PTX photos to JPG, TIFF or PNG in batch; it does not open Pro Tools sessions.

How to open a .PTX file on Windows

  1. Check where it came from. Copied from a camera memory card or a photo folder: Pentax RAW photo. Next to folders named Audio Files or Session File Backups: Pro Tools session.
  2. Pentax photo, free. The Pentax software that came with the camera views and exports PTX photos, one at a time.
  3. Pentax photos in batch. Contenta Converter converts a whole folder of .ptx photos to JPG, TIFF or PNG in one pass.
  4. Pro Tools session. Open it in Avid Pro Tools; Pro Tools Intro is free. A session holds the edit, not an image, so no photo converter can open it.

Inside one RAW file

DSC_0001.NEF9,454,032 B
JPG · 3900×2613 · 1.69 MB. Contenta decodes the sensor data and writes a new JPG. The camera and exposure tags come along (Nikon D60, ISO 400, 1/125 s, f/2.8, 86 mm).
One Nikon D60 NEF, read with ExifTool. Each block is drawn to its real byte size. Other cameras lay files out differently; this is one real file, not an average.
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Format

PTX

Company

Pentax
Description A Pentax RAW image file. RAW files store sensor data exactly as the camera captured it — before white balance, color correction, or compression are applied. They are the photographer's digital negative: full tonal range, editable later, faithful to what the sensor saw.
Benefits Nothing is baked in. You keep the full dynamic range (usually 12–14 stops), accurate colors, and the ability to change white balance, exposure, or color profile in post without losing quality. Shoot once, produce multiple interpretations later.
Drawbacks File sizes are 20–40 MB for a 24 MP sensor, versus 5–8 MB for a high-quality JPEG. No web browser, email client, or phone gallery opens them directly — you need a RAW processor to view them. Every camera brand uses its own flavor, and older RAW files sometimes stop being supported as editors move on.

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PTX image organization

How to open PTX? How to process PTX? How to shrink PTX? How to reduce PTX? How to rename PTX automatically? How to organize PTX in sub-folders? How to recompress PTX? How to create a PDF photo album from PTX?

PTX image color processing

How to convert PTX to black and white? How to convert PTX to sepia? How to adjust the brightness of PTX? How to adjust the contrast of PTX? How to adjust the gamma of PTX? How to invert the colors of PTX? How to boost colors of PTX? How to boost the contrast of PTX?

PTX image processing

How to add a watermark to PTX? How to create animated GIF slideshows from PTX? How to create pencil/ink drawings from PTX? How to sharpen PTX? How to blur PTX? How to refocus PTX? How to denoise hot pixels from PTX? How to crop PTX? How to rotate PTX? How to flip PTX?

PTX image annotation

How to change the DPI resolution of PTX? How to modify the IPTC/XMP dates of PTX? How to modify the IPTC/XMP description of PTX? How to modify the IPTC/XMP location of PTX? How to modify the IPTC/XMP legal information of PTX? How to edit the IPTC/XMP workflow of PTX? How to edit the IPTC/XMP copyright of PTX?

Frequently Asked Questions about PTX

Is a PTX file a photo or a Pro Tools session?

It depends on where it came from. Camera cards and photo folders hold Pentax RAW photos; audio project folders hold Pro Tools sessions. Contenta Converter only opens the Pentax photos.

How do I convert a Pentax PTX photo to JPG?

Drop the .ptx files into Contenta Converter, choose JPG and click Start Converting. It decodes the RAW data itself and writes one JPG per photo, for the whole folder at once.

Need more than PTX conversion? Browse supported cameras that produce PTX files below, or:

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