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Trouble report 402

Image resolution is not stored or loaded from BMP files

Versions affected

1.0 - 3.2


When you import from a BMP file, the image resolution (pixels per inch or pixels per cm) stored in the BMP file is ignored.  The imported file will be marked as having unknown resolution.

When you save an image to a BMP file, the image resolution value is not written to the file, even if it is known by The Panorama Factory.  As a result, some applications (e.g. Photoshop) will set the image resolution to a default value such as 72 DPI.

Please note that this problem does not really cause any loss of resolution in the image.  All of the image pixels are preserved.  It is simply that the information about how to display or print the image (pixels per inch) is lost.  You can restore this information in several ways.

Restoring image resolution information using The Panorama Factory

  1. Import the image into The Panorama Factory.
  2. Right-click the thumbnail for the image and select the Properties command from the drop down menu.
  3. Under Image resolution, select either pixels / inch or pixels / cm.
  4. Enter the desired image resolution in the Horizontal field.  The Panorama Factory will copy this value to the Vertical field for you.
  5. Click OK.

Restoring image resolution information using Photoshop

  1. Open the image in Photoshop.
  2. Select the Image size... command from the Image menu.
  3. Remove the checkmark from the Resample Image checkbox.
  4. Enter the desired image resolution in the Resolution field.
  5. Click OK.

This procedure will not alter your image data (pixels).  It will mark your image as having a particular resolution.  The resolution value is used to determine printing size and resolution when you print at Full size (The Panorama Factory) or 100% scale (Photoshop).


Use TIFF format instead of BMP.  When using TIFF format, the image resolution is stored and loaded correctly by The Panorama Factory.


Corrected in V3.3.

Revised: June 23, 2004

 1999-2005 Smoky City Design, LLC and John Strait