Ignore special chars, break lines more aggressively

Merge pull request #12 from VikParuchuri/dev

Improve line breaks, ignore special chars

Fix flattening bug

Merge pull request #11 from VikParuchuri/dev

Fix bug with flattening

Fix document loading bug

• There was a bug where pdf paths were assumed to be strings - this is not always the case

ONNX model, option to flatten form fields

• Faster inference with ONNX
• Remove warning when loading scikit-learn model
• Flatten form fields into pdf

Fix bbox bug

Fixed bug that didn't unnormalize bboxes properly.

Minor performance optimizations

• Optimize dictionary access and loops to get an ~10% speedup

Add optional parallel workers

Enable optional parallel workers when extracting text. This can cause a performance hit on small pdfs, but can speed things up 2x or more on larger ones. This can be done with the --workers flag via CLI, or via the workers kwarg.

Fix font issue

Not all spans would have the right font information before. This fixes the issue.

Work around pdfium bug

• Charbox has zero width/height when loose=True with rotation

Fix font names

• Fix logic for pulling font names
• Increase sample frequency