BatchEnhance Image

BatchEnhance Image is a Windows desktop app by 3thousand30 that upscales and prepares batches of images for high-quality print output — posters, photo books, fine art prints, and more.

Point it at a folder. Pick a scale and DPI. Click Enhance. Done.

Get it on Microsoft Store

How it works

Select your input folder — pick any folder of JPG, PNG, WebP, or TIFF images
Choose your settings — scale (1×–8×), DPI (150 / 300 / 600), and output format
Enhance — the app upscales each image using high-quality Lanczos3 resampling, applies a sharpening pass, and embeds the DPI metadata
Open your output folder — enhanced files land alongside your originals in an Enhanced subfolder

Image processing happens locally on your machine. The app may request the Inter UI font from Google Fonts for display consistency when an internet connection is available.

Key features

Multi-pass Lanczos3 upscaling — 2×, 3×, 4×, 6×, 8× scale options with a high-quality resampling algorithm
1× DPI-only mode — embed print DPI metadata without changing pixel dimensions
Three DPI presets — 150 (large format), 300 (standard print), 600 (fine art / archival)
Format conversion — output as JPG, PNG, WebP, or keep the original format
Skip existing files — re-run without reprocessing already-enhanced images
Batch progress — real-time counter with per-error logging
Local image processing — output generation happens on your device using Sharp

Documentation

Getting Started — install and run your first batch
Understanding DPI — what DPI means for print and which setting to choose
Output Formats — JPG vs PNG vs WebP and when to use each
Troubleshooting — common issues and fixes

Support

Found a bug or have a question? Email hello@3thousand30.com or open an issue on GitHub.