I'm developing pdf parser,i'm in trouble.
6 0 obj<</DecodeParms<</Columns 4/Predictor 12>>/Filter/FlateDecode/ID[<D0D1F903C5032042884E61B2933652DA><F929944EC68A3543A18A40F2E7630A9D>]/Info 23 0 R/Length 59/Root 25 0 R/Size 24/Type/XRef/W[1 2 1]>>stream h辀b endstream endobj
I decode the data in stream by zlib.
the compressed data is 115 bytes,
so,i convert the bytes to 5*23 matrix
hex(Compressed data):
02 01 00 10 00 02 00 02 6B 00 02 00 00 82 00 02 00 02 0A 00 02 00 01 6F 00 02 00 04 9F 00 02 00 01 22 00 02 00 00 66 00 02 00 08 8F 00 02 00 EE 18 00 02 01 00 A8 00 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 00 00 00 01 02 FF 01 B4 F5
then,i use png filter alg algorithm to decode the matrix data:
Up(x) + Prior(x)
hex(decoded data):
01 00 10 00
01 02 7B 00
01 02 ED 00
01 04 F8 00
..................
..................
w[1 2 1]
2th byte to 3byte is offset，
I cant't find obj by the offset,how can help me?