Open HDT files

  • Full name
    Photoshop HDR Toning Preset Format
  • Developer
    Adobe Systems
  • Popularity
Have you encountered a problem with a HDT file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a HDT file here. In the further part of this page we have added a list of programs that should open your HDT file. It is enough you choose a proper application for your operating system, download and install it.

What is HDT file?

The file extension HDT is used for so-called High Dynamic Tone or 32 Bit Toning Options files of the image editing software Photoshop. These files contain tone curve values that can be used when converting 32-bit High Dynamic Range (HDR) images to 16-bit or 8-bit color depth.

More info

An opened 32 bit HDR image can be converted to another image mode with 'Image -> Mode'. If you select an 8 or 16 bit mode, you can load and save HDT files in the following window 'HDR conversion'. You can also use the small arrow to display the corresponding tone curve and the histogram of the image.

Programs which can open a HDT file

How to open file with HDT extension?

In order to open a file with HDT extension one of the following programs must be installed on user’s system. If a problem with opening HDT file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with HDT files, follow the instructions below.
1
Install Adobe Photoshop or other program from the list

Most often resolving problems with opening HDT files is very simple. Just install an appropriate program that supports such files. All of the listed programs support HDT files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of HDT files or offer file conversion options, but may not be capable of editing such files.

Set Adobe Photoshop as the default program for opening HDT files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate HDT files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe Photoshop applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe Photoshop has been installed.

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Check the section that lists most common problems with HDT files

Sometimes problems with opening HDT files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • HDT files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open HDT files (should that be the case, please contact your system administrator or IT specialist)
  • HDT file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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