Pdf |
Member name | Value | Description |
---|---|---|
ASCII85Decode | 0 |
Decodes data encoded in an ASCII base-85 representation, reproducing the original binary data. Parameters: no. |
ASCIIHexDecode | 1 |
Decodes data encoded in an ASCII hexadecimal representation, reproducing the original binary data. Parameters: no. |
CCITTFaxDecode | 2 |
Decompresses data encoded using the CCITT facsimile standard, reproducing the original data (typically monochrome image data at 1 bit per pixel). Parameters: yes. |
Crypt | 3 | (PDF 1.5) Decrypts data encrypted by a security handler, reproducing the data as it was before encryption. Parameters: yes. |
DCTDecode | 4 |
Decompresses data encoded using a DCT (discrete cosine transform) technique based on the JPEG standard, reproducing image sample data
that approximates the original data. Parameters: yes. |
FlateDecode | 5 | (PDF 1.2) Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data. Parameters: yes. |
JBIG2Decode | 6 | (PDF 1.4) Decompresses data encoded using the JBIG2 standard, reproducing the original monochrome (1 bit per pixel) image data
(or an approximation of that data). Parameters: yes. |
JPXDecode | 7 | (PDF 1.5) Decompresses data encoded using the wavelet-based JPEG2000 standard, reproducing the original image data. Parameters: no. |
LZWDecode | 8 |
Decompresses data encoded using the LZW (Lempel-Ziv-Welch) adaptive compression method, reproducing the original text or binary data. Parameters: yes. |
RunLengthDecode | 9 |
Decompresses data encoded using a byte-oriented run-length encoding algorithm, reproducing the original text or binary data
(typically monochrome image data, or any data that contains frequent long runs of a single byte value). Parameters: no. |
Unknown | 10 | PdfFilter is not standard. |