PhotomatixCL Driver

PhotomatixCL Driver is a simple command line program that batches a folder of images using PhotomatixCL.

PhotomatixCL Driver is free of charge, but the PhotomatixCL program used in trial mode adds a watermark to the resulting images. You will need a PhotomatixCL license to disable the watermark.

PhotomatixCL Driver works with a folder that contains sets of bracketed images where each set has the same number of bracketed images (for example, a folder of sets of three bracketed images each).

PhotomatixCL Driver scans the files in the folder, groups them into sets, and processes each set by running PhotomatixCL with the files in the set.


PhotomatixCL Driver doesn't have an installer. You install it by saving the downloaded program in the directory where you will be running it from.

To install PhotomatixCL Driver:

  1. Click on one of the links below depending on your OS:

    PhotomatixCL Driver for Windows

    PhotomatixCL Driver for Linux

  2. Save the downloaded file in the location where you want to run PhotomatixCL Driver from.

Note: Since the downloaded file isn't an installer, clicking on it will do nothing. You directly run PhotomatixCL Driver from the command line using the commands described below.


A command line for processing multiple bracketed images sets follows this pattern:

[Set Selection Criteria] [PhotomatixCL Command Line]

[Set Selection Criteria]

This refers to your choices for the directory to look in, the number of images in a set and any criteria that the file names must match.

The criteria are given with the following command line options:

-n <num>:  Merge <num> images to HDR, where <num> is the number of images per bracketed set (e.g. -n 3).

-s <dir>:  Batch merge the images in <dir>, where <dir> is the directory to search for images (e.g. -s c:\Images).

-m <pattern>:  (Optional) Filter the input files by processing files with names following the pattern given by <pattern> (e.g. -m "*.jpg" to process only JPEG files).

This parameter is optional. If you leave it out, all files in the folder will be processed.

[PhotomatixCL Command Line]

This is the full command line you would use to process a bracketed set in PhotomatixCL.

This means you specify all the options you need for alignment, processing and output, but with two differences:

  1. You don't enter the path of the input files at the end of the command line. PhotomatixCL Driver will automatically add them before PhotomatixCL is run.
  2. You need to use the -d option to specify the path of the output folder where the processed images will be saved (the -o option isn't applicable when using PhotomatixCL Driver).

You can use the PhotomatixCL command generator below to generate a PhotomatixCL command line based on the options you enter in the form.

You can find the full PhotomatixCL options reference and command examples in the PhotomatixCL Documentation.

Sample PhotomatixCL Driver Command

The command below aligns and merges to HDR the JPEG files in the folder specified by the '-s' option in sets of three images each, processes them with the 'Natural' preset, and saves the resulting images into the folder specified by the '-d' option.

The command assumes your working directory is the folder where you installed the PhotomatixCL Driver file from the above download links.

(The part of the command line corresponding to the Set Selection Criteria is in orange color and the part corresponding to the PhotomatixCL Command Line in green color.)

Command on a Windows OS

PhotomatixCL-Driver -n 3 -s "c:\Images\Sets" -m "*.jpg" "c:\Program Files\PhotomatixCL\PhotomatixCL" -a2 -x Natural -d "c:\Images\Output\\"

Command on a Linux OS

PhotomatixCL-Driver -n 3 -s /home/<user>/Images/Sets -m "*.jpg" /home/<user>/PhotomatixCL/PhotomatixCL -a2 -x Natural -d /home/<user>/Images/Output/

If you've installed the statically linked version of PhotomatixCL, then replace '/home/<user>/PhotomatixCL/PhotomatixCL' with '/home/<user>/PhotomatixCL/PhotomatixCL-static'.

In case you get a permission error the first time you run the command, right-click on the PhotomatixCL-Driver file, select the 'Properties' option, click on the 'Permissions' tab and check the box 'Allow executing the file as program'.

PhotomatixCL Command Generator

The box at bottom contains the PhotomatixCL command line automatically generated from the options selected in the form below. You can change the selection to customize the command line to your needs.

Path to the PhotomatixCL program:  
 Run PhotomatixCL in trial mode
When run in trial mode, PhotomatixCL adds a watermark to the output images. Uncheck this box if you registered PhotomatixCL with a valid PhotomatixCL license key.

Merge to HDR options

Deghosting strength:  

Specify RAW file options

White Balance    
Apply to:  

HDR processing settings

Filter preset list
 Use custom HDR preset saved in XMP file


Folder of output images:  
Save processed image as:  
Save 32-bit HDR image as: