Why convert DCM to JPG?
DICOM stores medical imaging data such as X-ray, CT, and MRI scans in a specialized format that ordinary image apps cannot open. Exporting a slice as .jpg makes it shareable by email, embeddable in documents, and viewable without DICOM software. For informal sharing or quick review, JPG is sufficient; for diagnostic use, send the original DICOM series.
How to convert DCM to JPG
MicroDicom FREE
Open the .dcm file, adjust the window/level to show the anatomy you need, then go to File > Export Images and choose JPEG as the output format.
Horos OPEN-SOURCE
Import the DICOM folder, navigate to the slice you want, adjust window/level, then go to File > Export and select JPEG.
IrfanView FREE
Open the .dcm file - IrfanView supports many single-frame DICOM files - and use File > Save As to export as .jpg.
Adobe Photoshop APP
Open the .dcm file using Photoshop's built-in DICOM support, adjust levels as needed, then export via File > Export As JPEG.
Programs that convert DCM
About these formats
.DCM
DICOM Medical Image
A DCM file is a DICOM medical image - an X-ray, CT, MRI, ultrasound, or mammogram - bundled together with patient and study information. To open it, use a free DICOM viewer: MicroDicom on…
Open .DCM details →
.JPG
JPEG Image
A JPG (also .jpeg) is a compressed photo or image in the JPEG format, standardized in 1992. Every operating system opens it natively - double-click and Windows Photos, macOS Preview, or…
Open .JPG details →Quality & what to watch
- DICOM stores grayscale at 12-16 bit depth; JPG is 8-bit. The window/level setting at export determines what anatomy is visible - bone, soft tissue, and lung each require different settings.
- A CT or MRI series is often hundreds of individual
.dcmfiles; most viewers export only the currently displayed slice, not the full 3D volume. - DICOM files embed patient name, date of birth, and ID in metadata; viewers typically overlay this on the exported JPG. Anonymize before sharing.
