DOB Converter

Extract text from DOB files


Drop or upload your .DOB file

How to extract text from your DOB file

  1. Click the "Select File" button above, and choose your DOB file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert DOB to another file type

To convert your DOB file to another format, you need Yealink Picture Upload Tool or other Raster Image software.

Convert a file to DOB

To convert other file formats to the "Proprietary Bitmap" file type, you need software like Yealink Picture Upload Tool or a similar tool.


About DOB files

The .dob file extension primarily represents a proprietary bitmap image format used by Yealink VoIP phones to display company logos and screen wallpapers. Unlike standard JPG or PNG files, Yealink .dob files are heavily compressed and often restricted to specific dimensions (e.g., 132x64 or 236x82 pixels) and color depths (typically 1-bit monochrome or 2-bit grayscale) to fit legacy LCD screens. Users often struggle with these files because they cannot be opened by standard image viewers like Adobe Photoshop or Microsoft Photos. System administrators typically need to convert a standard company logo into a .dob file using the Yealink PictureExDemo utility to brand their phone fleet, or conversely, convert a .dob extracted from a phone backup back to BMP to verify the image content.

Secondary to the image format, .dob also refers to a Visual Basic UserDocument. This is a legacy development file from the Visual Basic 6 era, used to define the layout and properties of an ActiveX document (a technology that allowed VB applications to run inside web browsers like Internet Explorer). These files are plain text source files, similar to FRM (Form) files, but they are usually accompanied by a binary DOX file containing compiled data. Developers may need to convert these to PDF or text formats for documentation or archiving purposes since the original ActiveX technology is now obsolete.

Convert.Guru analyzes your DOB file, detects the exact format, and lets you read the text inside.

Users also converted PNG, JPG, BMP, VOB, PDF, JPEG, MEMO, EDZ and JPA files.


FAQ

If you want to convert DOB file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use Yealink Picture Upload Tool or similar software from the "VoIP Phone Logo Image" category. In the File menu, look for Save As… or Export….

To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to DOB, try Yealink Picture Upload Tool or another comparable tool in the "VoIP Phone Logo Image" category.



The DOB 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 DOB converter.