pdn2ora 0.1.0

Convert Paint.NET (.pdn) files to OpenRaster (.ora) format

pdn2ora

This cross-platform CLI tool converts Paint.NET (.pdn) files to OpenRaster (.ora) format, preserving all layer properties, blend modes, opacity, and visibility.
Paint.NET's native format is proprietary; this opens up your artwork for use in Krita, GIMP, and other open-source editors.
Supports recursive batch conversion, dry-run previews, post-conversion validation, and standalone binaries for Linux and Windows.

• Codeberg (main): https://codeberg.org/marvin1099/pdn2ora
• GitHub (mirror): https://github.com/marvin1099/pdn2ora

Install

git clone https://codeberg.org/marvin1099/pdn2ora.git
cd pdn2ora

# With uv (recommended)
uv tool install .

# Or with pipx
pipx install .

# Or with pip
pip install --user .

Binary downloads

Instead of installing from source, get pre-compiled binaries from the releases page, or build binaries using

./build.sh linux     # Linux binary → dist/pdn2ora-linux-x64
./build.sh windows   # Windows binary via Wine → dist/pdn2ora-win-x64.exe
./build.sh all       # both

Development

git clone https://codeberg.org/marvin1099/pdn2ora.git
cd pdn2ora
./build.sh setup     # install all deps
./build.sh test      # run tests
./build.sh lint      # check code style

Usage

pdn2ora [options] FILE_OR_DIR [FILE_OR_DIR ...]

Examples

pdn2ora input.pdn                       # single file
pdn2ora ./artwork/ -r -D ./output/      # recursive batch to output dir
pdn2ora input.pdn --info                # show layer info
pdn2ora *.pdn -d -y                     # convert and delete sources

Options

Flag	Description
Output
-o, --output PATH	Explicit output path (single file only)
-D, --output-dir DIR	Put all ORA files into DIR
-s, --suffix EXT	Output file extension (default: .ora)
-w, --overwrite	Overwrite existing output files
-t, --no-thumbnail	Skip thumbnail generation
Conversion
-r, --recursive	Recursively search directories
-d, --delete	Delete source .pdn after successful conversion
-x, --delete-only	Delete .pdn if .ora already exists
-A, --validate	Validate the ORA file after writing
Info
-i, --info	Show PDN file info and exit
-S, --stats	Show file size comparison
General
-v, --verbose	Increase verbosity (-v info, -vv debug)
-y, --yes	Skip confirmation prompts
-n, --dry-run	Show what would be done without doing it
-V, --version	Show version
-h, --help	Show help