PdfFilterType Enum
Represents an enumeration of standard PdfFilters.
Fields
| ASCII85Decode | Decodes data encoded in an ASCII base-85 representation, reproducing the original binary data. Parameters: no. |
| ASCIIHexDecode | Decodes data encoded in an ASCII hexadecimal representation, reproducing the original binary data. Parameters: no. |
| CCITTFaxDecode | Decompresses data encoded using the CCITT facsimile standard, reproducing the original data (typically monochrome image data at 1 bit per pixel). Parameters: yes. |
| Crypt | (PDF 1.5) Decrypts data encrypted by a security handler, reproducing the data as it was before encryption. Parameters: yes. |
| DCTDecode | 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 | (PDF 1.2) Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data. Parameters: yes. |
| JBIG2Decode | (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 | (PDF 1.5) Decompresses data encoded using the wavelet-based JPEG2000 standard, reproducing the original image data. Parameters: no. |
| LZWDecode | Decompresses data encoded using the LZW (Lempel-Ziv-Welch) adaptive compression method, reproducing the original text or binary data. Parameters: yes. |
| RunLengthDecode | 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 | PdfFilter is not standard. |