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parse_object_stream_with_decryption

pdf_oxide::objstm

Function parse_object_stream_with_decryption 

Source 
pub fn parse_object_stream_with_decryption(
    stream_obj: &Object,
    decryption_fn: Option<&dyn Fn(&[u8]) -> Result<Vec<u8>>>,
    obj_num: u32,
    gen_num: u32,
) -> Result<HashMap<u32, Object>>
Expand description

Parse an object stream with optional decryption.

PDF Spec: Object streams (PDF 1.5+) can be encrypted like any other stream. The encryption must be applied before decompression.

§Arguments

  • stream_obj - The object stream object (must be a Stream with /Type /ObjStm)
  • decryption_fn - Optional decryption function (from EncryptionHandler)
  • obj_num - Object number (for encryption key derivation)
  • gen_num - Generation number (for encryption key derivation)

§Returns

A HashMap mapping object numbers to their parsed objects.

§Errors

Returns an error if:

  • The object is not a stream
  • The stream is not a valid object stream (/Type /ObjStm)
  • Required dictionary entries (/N, /First) are missing
  • Stream decoding/decryption fails
  • Object parsing fails