An OmniPage Document (.opd) contains the original page images (optionally pre-processed) with any zones placed on them. After recognition, the OPD also contains the recognition results.
An OmniPage Document can contain an embedded user dictionary, training file, zone template file, or an image enhancement template file. This can increase file size considerably but makes the OPD more portable. To embed a file, open the relevant dialog box from the Tools menu, select the desired file and click Embed. Use the Extract button to get a local copy of an embedded file inside an OPD you have received.
When you open an OmniPage Document, its settings are applied, replacing those existing in the program.