Slice up PDFs like a pro.
Project description
Slice up PDFs like a pro:
% bocho my-fancy-file.pdf --pages 1 3 5 6 10 --angle 30 --zoom 1.6 my-fancy-file-bocho-630x290.png
Takes a PDF file and creates a “stacked page” preview from a selection of pages.
It accepts a bunch of options for customising the output (pass the -h flag for details).
Installation
Requires ImageMagick so you might need to, e.g:
% sudo apt-get install imagemagick
If you want to use Wand instead of calling convert directly, you’ll also need to perform some some additional steps, e.g:
% sudo apt-get install libmagickwand-dev % pip install wand
See their installation instructions for more details.
On OS X, you’ll want to use Homebrew to get the low-level dependencies in place:
% brew install ghostscript imagemagick
Once all that’s sorted, you just need to pip install deba-bocho.
Usage
For information on usage, run bocho --help. If you want to use it as a module:
>>> import bocho >>> help(bocho.assemble)
Configuration
If you will be using the same options many times, it’s probably worth creating a preset in a config.ini file (see config.example.ini or the example below to get started).
By default, bocho will check for $HOME/.config/bocho/config.ini, so it’s probably best to keep your config there, but you can pass the --config option with the path to an alternative location.
[example]
pages = 1,3,5,7,9
width = 630
height = 290
border = 4
reuse = true
delete = true
verbose = true
use_convert = true
You can tell bocho to use this preset by calling:
bocho /path/to/file.pdf --preset example [--config /path/to/config.ini]
TODO
implement rotation properly ✓
allow a “zoom” option ✓
optional drop-shadows ✓
make shadows smarter in their orientation (they’re currently uniform, not respecting the angle / affine transformation)
make the basic edge separators optional ✓
automatic spacing as an option as well as fixed pixel spacing
horizontal and vertical spacing ✓
horizontal and vertical offsets ✓
optional right-to-left stacking ✓
handle non-A4 aspect ratio input documents ✓
optionally apply transforms:
affine ✓ (basic, subtle, non-configurable)
perspective
ensure sliced PNGs are large enough when custom width / height are specified
fix x and y spacing calculation to account for any applied rotation & transformation
allow transforms to be configurable (probably with presets defined in an .ini file)
drop the PyPDF dependency ✓
use an ImageMagick binding rather than using subprocess to call convert ✓ (Wand)
optionally re-use pages between runs ✓
allow user-specified resolution for the PDF to PNG conversion ✓
docs ✓
pretty pictures illustrating the effect of the various options
use proper logging
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