> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PageProcessingStageEnum

PageProcessingStageEnum enumeration constants are used to denote the stage of image processing.

```
typedef enum {
 PPS_Open,
 PPS_Preprocess,
 PPS_Analysis,
 PPS_Recognition,
 PPS_Synthesis,
 PPS_Export,
 PPS_UserUpdate
} PageProcessingStageEnum;
```

## Elements

| Name               | Description                                                                                                              |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------ |
| PPS\\\_Analysis    | Layout analysis.                                                                                                         |
| PPS\\\_Export      | Page export.                                                                                                             |
| PPS\\\_Open        | Image opening.                                                                                                           |
| PPS\\\_Preprocess  | Image preprocessing.                                                                                                     |
| PPS\\\_Recognition | Page recognition.                                                                                                        |
| PPS\\\_Synthesis   | Document synthesis.                                                                                                      |
| PPS\\\_UserUpdate  | The [IFRPage::Update](/fine-reader/engine/api-reference/document-related-objects/frpage/update-method) method is called. |

## Used in

[IFRDocumentEvents::OnPageProcessed](/fine-reader/engine/api-reference/document-related-objects/ifrdocumentevents/onpageprocessed-method)

[IFRPageEvents::OnPageProcessed](/fine-reader/engine/api-reference/document-related-objects/ifrpageevents/onpageprocessed-method)