Two viewers

A Windows application you can install today, and a browser-based viewer that is still in preview.

PrologicSign Viewer for Windows

Released, 1.0.0

A desktop DICOM viewer for Windows 10, Windows 11 and Windows Server (64-bit). It works on its own, or with a PrologicSign PACS on the same computer.

What it does

  • Opens DICOM files, folders, CDs and USB drives from any system.
  • With a license, searches any vendor's PACS (C-FIND) and retrieves studies with C-GET, or C-MOVE where a PACS only supports that.
  • With a PrologicSign PACS on the same computer: the study list and "Open in viewer" from the admin app.
  • Window/level with presets, zoom, pan, rotate, flip, invert and a pixel-exact display mode.
  • Layouts up to 5x5 and cine up to 60 frames per second (full viewer).
  • Length, angle, Cobb, probe, rectangle, ellipse and freehand ROI, and text (full viewer; the basic viewer has length).
  • Saves images as PNG or JPEG and exports a series as DICOM.

What it does not do in this release

  • Windows only.
  • No multi-planar reconstruction (MPR), 3D or image fusion.
  • No hanging protocols and no linked scrolling between viewports.
  • No DICOM over TLS for connections to other PACS: a connection marked TLS is refused, never sent unencrypted.
  • The installer is not yet signed with a Windows code-signing certificate, so Windows may show "Unknown publisher".
Download Editions How it works

PrologicSign Web Viewer

Preview, not generally available

A zero-footprint viewer that runs in the browser: a folder of static files on your own web server, with no server component. It is still in development: it cannot be downloaded or licensed yet, and some of its automated tests still fail. Contact us if you would like to see it.

Working in the current preview build

  • Study list and images from any DICOMweb server (QIDO-RS, WADO-RS, WADO-URI), and local files.
  • Opening a study or file directly from a URL.
  • Measurements and annotations.
  • Synchronised viewports and study comparison.
  • MPR, MIP and 3D volume rendering.
  • DICOM structured reports, ECG waveforms, encapsulated PDF and video.
  • Your own name, logo and colours.

Not ready yet

  • Export, download, print and anonymise: built, still being tested.
  • Launching from another system with a signed token: built, still being tested.
  • Sending to a PACS, e-mail and reporting: in development.
  • Phone and tablet layouts: in development.
  • Licenses: the portal does not issue web viewer licenses yet.

Not a medical device.