Image Previewer is a small image processing project. It uses tools such as ImageMagick, Libvips and Waifu2x to provide features such as:

Features

• Convert many input formats (.psd, .gif, .tiff, .eps, .svg, .webp, .png, .jpg, multi-page PDF) to PNG or JPEG using libvips or ImageMagick.
• Convert images between sRGB and CMYK color spaces (ICC-aware).
• WIP: combine multiple images into one printable PDF with options:
  • page orientation
  • page size (A3, A4, Letter, etc.)
  • layout (grid, one-per-page, all-in-one)
  • scale modes: fit (preserve aspect ratio) or fill (cover & crop)
  • DPI and margins
• Upscale images with waifu2x via the ncnn Vulkan implementation (waifu2x-ncnn-vulkan).

Instructions for the web UI

# 1. Clone (replace with your repository URL)
git clone https://github.com/Mirkoffcito/image_previewer.git
cd image-previewer

# 2. Build the image and install dependencies (uses Docker)
bin/setup

# 3. Start the web UI (bundles assets and starts the server)
bin/run_server

# 4. Open the web UI in your browser:
# http://localhost:9292

That's it! You can try for yourself.