> 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.md).

# Configuration

- [Overview](https://docs.viesus.com/configuration/overview.md)
- [Presets Gallery](https://docs.viesus.com/configuration/presets-gallery.md): Ready-to-use VIESUS enhancement preset configurations for common workflows. Download a JSON, drop it in, run.
- [Parameters](https://docs.viesus.com/configuration/parameter-reference.md): Complete reference for all viesusini.json parameters — Gpars, Lpars, Config, Resize, Background, ICCProfiles, AutoCrop, and Other.
- [Global Parameters](https://docs.viesus.com/configuration/parameter-reference/global-parameters.md): The Gpars section — global enhancement strengths, specialised AI strengths, and manual corrections applied to the whole image.
- [Local Parameters](https://docs.viesus.com/configuration/parameter-reference/local-parameters.md): The Lpars section — region correction factors and per-zone adjustments for skin, sky, and vegetation.
- [Mode Switches](https://docs.viesus.com/configuration/parameter-reference/mode-switches.md): The Config section — which processing stages run, plus the ARmode and HDRmode value tables and feature dependencies.
- [Resizing](https://docs.viesus.com/configuration/parameter-reference/resizing.md): The Resize section — image resizing, super-resolution, target dimensions, and the full list of resize mode values.
- [Background & Cropping](https://docs.viesus.com/configuration/parameter-reference/background-and-cropping.md): The Background section (replacement, color substitution, balance) and the AutoCrop section (portrait auto-cropping).
- [Output & Color](https://docs.viesus.com/configuration/parameter-reference/output-and-color.md): The Other section (output format, JPEG quality, DPI, monochrome/sepia) and the ICCProfiles section (output color profile).
- [PDF Settings](https://docs.viesus.com/configuration/pdf-settings.md): The PDF Enhancer's settings.json — general behavior, resizing, folders, triggers, file extensions, and special rendering modes.
- [General](https://docs.viesus.com/configuration/pdf-settings/general.md): General PDF Enhancer settings — core processing behavior, image filtering, adjacency, and soft-mask handling.
- [Resizing](https://docs.viesus.com/configuration/pdf-settings/resizing.md): PDF Enhancer resizing settings — image resizing, AI Upscaling, and artifact-removal modes for embedded images.
- [Folders & Triggers](https://docs.viesus.com/configuration/pdf-settings/folders-and-triggers.md): PDF Enhancer folder paths and the file-based trigger workflow for hotfolder processing.
- [File Extensions](https://docs.viesus.com/configuration/pdf-settings/file-extensions.md): PDF Enhancer naming conventions for processed and archived files.
- [Special Functions](https://docs.viesus.com/configuration/pdf-settings/special-functions.md): PDF Enhancer special rendering modes — Render to Image (RTI) and Render to PDF (RTPDF).


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