v0.5.1

Added

• Quick-draw PageImage methods: .draw_vline, .draw_vlines, .draw_hline, and .draw_hlines.
• Boolean parameter keep_blank_chars for .extract_words(...) and TableFinder settings.

Changed

• Increased default text_tolerance and intersection_tolerance TableFinder values from 1 to 3.

Fixed

• Properly handle conversion of PDFs with transparency to pillow images.
• Properly handle pandas DataFrames as inputs to multi-draw commands (e.g., PageImage.draw_rects(...)).