> ## 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.

# PaperSizeDetectionModeEnum

PaperSizeDetectionModeEnum enumeration constants are used to indicate if the whole preprocessed image can contain information for further analysis.

```
typedef enum {
 PSDM_Auto,
 PSDM_Unknown,
 PSDM_CloseToImageSize
} PaperSizeDetectionModeEnum;
```

## Elements

| Name                     | Description                                                                                                                                                        |
| ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| PSDM\\\_Auto             | The area will be defined automatically and can be significantly smaller than the original image.                                                                   |
| PSDM\\\_Unknown          | There is no predefined information about significant image area. The area that will be defined for analyzing can be significantly smaller than the original image. |
| PSDM\\\_CloseToImageSize | The whole image can contain information for analysis. The area that will be defined for analyzing must not be significantly smaller than the original image.       |

## Used in

[PageAnalysisParams::PaperSizeDetectionMode](/fine-reader/engine/api-reference/parameter-objects/preprocessing-analysis-recognition-and-synthesis-parameters/pageanalysisparams#papersizedetectionmode)