Browse Definitions :
File Extension

DTF File Format

Database file for ACDSee

DTF file format icon

DTF is a file extension for a database file used by ACDSee. DTF files contain a database of thumbnail images used by ACDSee. DTF files and their associated DDF files can be deleted if ACDSee is responding slowly. DTF files are used by ACDSee but aren't directly viewable with the application.

The DTF file extension is also used by Symantec Q&A relational database files and PFS Q&A database files.

Learn more about .DTF files:

Visit the ACDSee web page.

Read about Thumbnails at

This was last updated in September 2010
Browse File Extensions Alphabetically:

Ask a Question. Find an Answer.

Ask your peers a question about this file extension.

Ask a Question

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.






  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 


  • RAID 6 (redundant array of independent disks)

    RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID ...

  • hard disk drive (HDD)

    A computer hard disk drive (HDD) is a non-volatile memory hardware device that controls the positioning, reading and writing of ...

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a ...