Module cid_font 

CID font support for CJK text extraction.

Handles Type0 (composite) fonts with CIDFontType0 and CIDFontType2 descendant fonts. Provides CID-to-GID mapping, /W (width) array parsing, and /DW (default width) handling for CID fonts.

Structs

CidFontMetrics

Font metrics for a CID font, handling the /W array and /DW default width.

CidSystemInfo

CID system information from the /CIDSystemInfo dictionary.

PredefinedCMapInfo

Information about a predefined CMap encoding.

Enums

CidFontType

CID font subtype.

CidToGidMap

CID-to-GID (glyph ID) mapping strategy.

Functions

extract_cid_font_metrics

Extract CID font metrics from a CIDFont dictionary (descendant of Type0).

get_descendant_font

Extract the descendant CIDFont dictionary from a Type0 font.

get_type0_encoding

Get the encoding name from a Type0 font dictionary.

is_subset_font

Check if a font name has a subset prefix.

is_type0_font

Detect whether a font dictionary represents a Type0 (composite/CID) font.

parse_predefined_cmap_name

Parse a predefined CMap name and extract its information.

parse_w_array

Parse a /W (width) array from a CID font dictionary.

strip_subset_prefix

Strip the subset prefix from a font name.