DTF file icon

DTF File Extension

ACDSee Thumbnail Database Format

What is DTF file?

DTF files are associated with ACDSee image viewer.

What kind of data do DTF files hold?

DTF files store thumbnail image in the form of a database. DTF files are loaded to ACDSee along with selected images. DTF files are not directly accessible inside ACDSee.

Can I safely delete a DTF file?

Frequent uses of ACDSee may in effect generate a large DFT files which in turn may impact the application performance by significantly slowing thumbnails loading times. Should such a situation occur, user may want to delete the DTF file. Deleting the file should significantly improve the performance of ACDSee and recreate relevant DTF file. DTF files are saved in the default ACDSee folder located in user’s Documents or Settings folder.

Programs which support DTF file extension

Programs that can handle DTF files are as follows. DTF files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support DTF file

Updated: 12/10/2022

How to open file with DTF extension?

There can be multiple causes why you have problems with opening DTF files on given system. Fortunately, most common problems with DTF files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with DTF files.

Step 1. Download and install ACDSee Photo Manager

Install software to open DTF file The main and most frequent cause precluding users form opening DTF files is that no program that can handle DTF files is installed on user’s system. To address this issue, go to the ACDSee Photo Manager developer website, download the tool, and install it. It is that easy The full list of programs grouped by operating systems can be found above. If you want to download ACDSee Photo Manager installer in the most secured manner, we suggest you visit ACD Systems International Inc. website and download from their official repositories.

Step 2. Verify the you have the latest version of ACDSee Photo Manager

Update software that support file extension DTFIf the problems with opening DTF files still occur even after installing ACDSee Photo Manager, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of ACDSee Photo Manager is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why DTF files are not compatible with ACDSee Photo Manager. The latest version of ACDSee Photo Manager should support all file formats that where compatible with older versions of the software.

Step 3. Associate ACDSee Thumbnail Database Format files with ACDSee Photo Manager

After installing ACDSee Photo Manager (the most recent version) make sure that it is set as the default application to open DTF files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with DTF file on Windows

The procedure to change the default program in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the DTF file
  • Select Choose another app → More apps
  • Finally select Look for another app on this PC, point to the folder where ACDSee Photo Manager is installed, check the Always use this app to open DTF files box and conform your selection by clicking OK button
Associate software with DTF file on Mac

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected DTF file open the file menu and choose Information
  • Open the Open with section by clicking its name
  • Select ACDSee Photo Manager and click Change for all...
  • If you followed the previous steps a message should appear: This change will be applied to all files with DTF extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the DTF file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the DTF file is valid. Being unable to access the file can be related to various issues.

Check DTF file for viruses
1. Verify that the DTF in question is not infected with a computer virus

Should it happed that the DTF is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the scanner detected that the DTF file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with DTF extension is complete and error-free

If the DTF file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the DTF file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the ACDSee Thumbnail Database Format file.

4. Verify that your device fulfills the requirements to be able to open ACDSee Photo Manager

If the system is under havy load, it may not be able to handle the program that you use to open files with DTF extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with ACDSee Thumbnail Database Format files. It may be the case that the DTF files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the DTF file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on DTF file.

Top File Extensions
Show more
File Extension of the day
ova icon


Open Virtual Appliance

The OVA format is used to store data packages concerning a virtual machine. Specifically, OVE files are actually compressed OVF files, along with s...