Symptoms

The text on some of the processed documents is partially not recognized.

Cause

Documents could include the problematic text layer. Thus this issue can be resolved by force use of OCR.

Resolution

Please add to your code snippet:

IDocumentProcessingParams docParams = engine.CreateDocumentProcessingParams();
docParams.getPageProcessingParams().getObjectsExtractionParams().setSourceContentReuseMode(SourceContentReuseModeEnum.CRM_DoNotReuse);
document.Process( docParams );