> For the complete documentation index, see [llms.txt](https://docs.viesus.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.viesus.com/configuration/pdf-settings/general.md).

# General

General PDF Enhancer settings — core processing behavior, image filtering, adjacency, and soft-mask handling.

Core configuration for PDF processing behavior.

<table><thead><tr><th width="222.199951171875">Parameter</th><th width="85.800048828125">Type</th><th width="98.4000244140625">Default</th><th>Description</th></tr></thead><tbody><tr><td><code>viesusIni</code></td><td>String</td><td>-</td><td>Path to the VIESUS image enhancement configuration file. Default path is <code>C:\ProgramData\Imaging Solutions\VIESUS\PDFEnhancer\IsEnhance.json</code></td></tr><tr><td><code>archive</code></td><td>Boolean</td><td>1</td><td>Enable / disable archiving of processed files</td></tr><tr><td><code>delete</code></td><td>Boolean</td><td>1</td><td>Enable / disable deletion of source files after processing</td></tr><tr><td><code>debug</code></td><td>Boolean</td><td>1</td><td>Enable / disable debug mode and logging</td></tr><tr><td><code>minFileSize</code></td><td>Integer</td><td>20</td><td>Minimum PDF file size (KB) for processing</td></tr><tr><td><code>destFileLog</code></td><td>Boolean</td><td>0</td><td>Enable destination file logging</td></tr><tr><td><code>useColorRatio</code></td><td>Boolean</td><td>0</td><td>Enable color ratio analysis for artificial image detection</td></tr><tr><td><code>colorRatioThres</code></td><td>Float</td><td>0.05</td><td>Threshold for color ratio analysis</td></tr><tr><td><code>checkAdjacentImages</code></td><td>Boolean</td><td>1</td><td>Check for adjacent images to merge for enhancement</td></tr><tr><td><code>adjacencyThres</code></td><td>Integer</td><td>10</td><td>Threshold for determining image adjacency (pixels)</td></tr><tr><td><code>overlapThres</code></td><td>Integer</td><td>10</td><td>Threshold for determining image overlap (pixels)</td></tr><tr><td><code>includeSoftMaskedImages</code></td><td>Boolean</td><td>1</td><td>Enable enhancement of images with soft masks</td></tr><tr><td><code>streamReading</code></td><td>Boolean</td><td>1</td><td>Enable JPEG stream reading (disable for files with zipped images)</td></tr><tr><td><code>skipFullPageBackground</code></td><td>Boolean</td><td>1</td><td>Skip background images that fill the entire page</td></tr><tr><td><code>minImageWidth</code></td><td>Integer</td><td>64</td><td>Skip images narrower than this</td></tr><tr><td><code>minImageHeight</code></td><td>Integer</td><td>64</td><td>Skip images shorter than this</td></tr></tbody></table>

{% hint style="info" %}
For boolean parameters: **0** = OFF, **1** = ON.
{% endhint %}

{% hint style="warning" %}

* **`checkAdjacentImages`** should be disabled for very complex PDFs to avoid performance issues
  {% endhint %}


---

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