Click the "Select File" button above, and choose your IDLK file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert IDLK to another file type
To convert your IDLK file to another format, you need Adobe InDesign or other System software.
Convert a file to IDLK
To convert other file formats to the "InDesign Lock File" file type, you need software like Adobe InDesign or a similar tool.
About IDLK files
The .idlk file is a temporary lock file generated by Adobe InDesign. Its sole purpose is to prevent file conflicts by "locking" an active INDD project so that other users on a network cannot edit it simultaneously.
Users typically encounter this file after InDesign crashes or if a file was not closed properly. In these cases, the .idlk file is left behind as "orphan" data, tricking the software into believing the document is still open. This prevents you from opening your actual INDD file, often displaying a "File is in use" error. A common misconception is that the .idlk file contains the document data itself and needs to be converted. In reality, it is often a 0-byte file or contains only simple metadata about who has the file open.
To "convert" or use this file, you must resolve the lock:
Editing: Locate and delete the .idlk file (ensure InDesign is closed). This releases the lock, allowing you to open the original INDD file.
If you want to convert IDLK file to TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD, LOCK or PID, you can use Adobe InDesign or similar software from the "Document Lock File" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to IDLK, try Adobe InDesign or another comparable tool in the "Document Lock File" category.
The IDLK Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our IDLK converter.