Extract text from Dump files and scans (DUM)
To convert DUM Dump files to another format, you need My Scans / Greenshot or other Other software.
To convert other file formats to the "Temporary Dummy File" file type, you need software like My Scans / Greenshot or a similar tool.
The .dum file is typically a disguised or temporarily renamed standard file format, most commonly a Portable Document Format (PDF), JPG, or PNG. It is generally generated as a temporary export, a generic "dummy" output, or a cache file by mobile scanning applications like My Scans or screenshot utilities such as Greenshot.
The main disadvantage of the .DUM format is its completely obfuscated nature. Because the operating system cannot inherently recognize whether the data is a document, an image, or system junk, double-clicking the file results in an "Unknown Format" error. Users are left entirely unable to view, edit, or share the contents without manual intervention or guesswork.
To make the file usable, it must be accurately identified and restored to its original format. Depending on the internal payload, document-based .dum files should be converted to PDF, while image-based ones should target standard web formats like JPG or PNG with absolutely zero loss in quality.
This file format is difficult to open or convert because standard online tools rely exclusively on the file extension name rather than analyzing the file's internal signature (magic bytes). Just drag and drop your file to identify the format, view it, and convert it when possible. Our system will analyze the binary header of the .dum file, detect the true underlying format, and allow you to instantly recover the embedded data.
Convert.Guru analyzes your DUM file, detects the exact format, and lets you read the text inside.
Users also converted DUMP, DMP, 23, 08 and 2022 files.
If you want to convert DUM file to , you can use My Scans / Greenshot or similar software from the "Temporary Obfuscated File Wrapper" category. In the File menu, look for Save As… or Export….
To convert files to DUM, try My Scans / Greenshot or another comparable tool in the "Temporary Obfuscated File Wrapper" category.
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 DUM converter.