If you are an active blogger or creating lots marketing material, you probably use a huge number of images and photos to keep your audience engaged. If you share on Facebook and Twitter, you may want to have suitable thumbnails. It’s a hell lot of work to have so many images and their derivatives. Some common tasks:
- Create a derivative image for Facebook post of size 281x394, 470x235, 470x246, …
- Generate an image for Twitter post of size 600x335, 800x320, …
- Create round, square thumbnails, …
- Generate images for Facebook Open Graph and Twitter Card
Without simple and effective tools, you won’t be able to accomplish those tasks efficiently. I create a too called PySmile that does automated conversion for you. The tool is a command line Python script and will add GUI soon.
Features
- Easy to run with very few input arguments
- Supports multiple output formats: ‘PNG’, ‘GIF’, ‘JPG’, ‘JPEG’, ‘BMP’, ‘PDF’
- Preserves transparency ({GIF, PNG} => {GIF, PNG})
- Multiple options for resizing: By ratio, fixed width, fixed height
- Takes wildcards for input files
- Specify as many input files as you want
- Non-destructive conversion of transparent PNG to non-transparent PDF, JPEG, BMP, GIF
Usage
Convert *.png to pdf
./pysmile.py -o pdf -d ExportFolder ~/Downloads/*.png
Resize to 50% and Keep Format
./pysmile.py -r 50 -d ExportFolder ~/images/*
Resize to Fixed Width 200px and Keep Format
./pysmile.py --width 200 -d ExportFolder ~/images/*
Resize secret*.bmp to Fixed Height 200px to JPEG
./pysmile.py -o jpeg --height 200 -d ExportFolder ~/images/secret*.bmp
Single Input File
./pysmile.py -o png --height 200 -d ExportFolder ~/images/single.jpg
Multiple Input Patterns
./pysmile.py -o png --height 200 -d ExportFolder ~/images/single.jpg ~/Downloads/*.gif ~/Desktop/*hey*.png
For Detailed Usage
usage: pysmile.py [-h] [-r SIZE_RATIO | --width WIDTH | --height HEIGHT]
[-d DEST_DIR] [-o OUTPUT_EXT] [-t] [-q]
input_pattern [input_pattern ...]
Process images in batches.
positional arguments:
input_pattern Look for files that match some pattern. E.g. *.png or
pic*cool*
optional arguments:
-h, --help show this help message and exit
-r SIZE_RATIO, --size-ratio SIZE_RATIO
Whether to resize, in %
--width WIDTH Resize to specified width
--height HEIGHT Resize to specified height
-d DEST_DIR, --dest-dir DEST_DIR
Destination directory to writen processed images
-o OUTPUT_EXT, --output-format OUTPUT_EXT
Output format/extension to save all images. If empty,
original format of images is preserved. Allowed output
extensions: ('png', 'gif', 'jpg', 'jpeg', 'bmp',
'pdf')
-t, --gif-transparency
Preserve transparency when converting to GIF. Note:
May yield lower quality output.
-q, --quiet Convert files without confirmation