View Source Pdf.Reader.Filter.ASCIIHex (ExPDF v1.0.1)

ASCIIHexDecode filter — decodes a sequence of hexadecimal digit pairs to a binary.

Rules (per PDF spec §7.4.2):

  • Whitespace (space, tab, CR, LF, FF, null) is ignored between pairs.
  • > (0x3E) is the end-of-data (EOD) marker; any bytes after it are ignored.
  • If the number of hex digits before EOD is odd, the last digit is padded with a trailing 0 nibble.
  • All other characters are an error.

Summary

Functions

decode(bytes, params)

Decode ASCIIHex-encoded bytes.

Functions

Link to this function

decode(bytes, params)

View Source 
@spec decode(binary(), map()) :: {:ok, binary()} | {:error, term()}

Decode ASCIIHex-encoded bytes.

params is accepted but ignored (no DecodeParms defined for this filter).