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PdfFilterType Enumeration

Represents an enumeration of standard PdfFilters.

Namespace: SautinSoft.Pdf.Filters
Assembly: SautinSoft.Pdf (in SautinSoft.Pdf.dll) Version: 2024.11.26
Syntax
public enum PdfFilterType
Members
Member nameValueDescription
ASCII85Decode0 Decodes data encoded in an ASCII base-85 representation, reproducing the original binary data.
Parameters: no.
ASCIIHexDecode1 Decodes data encoded in an ASCII hexadecimal representation, reproducing the original binary data.
Parameters: no.
CCITTFaxDecode2 Decompresses data encoded using the CCITT facsimile standard, reproducing the original data (typically monochrome image data at 1 bit per pixel).
Parameters: yes.
Crypt3(PDF 1.5) Decrypts data encrypted by a security handler, reproducing the data as it was before encryption.
Parameters: yes.
DCTDecode4 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.
FlateDecode5(PDF 1.2) Decompresses data encoded using the zlib/deflate compression method, reproducing the original text or binary data.
Parameters: yes.
JBIG2Decode6(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.
JPXDecode7(PDF 1.5) Decompresses data encoded using the wavelet-based JPEG2000 standard, reproducing the original image data.
Parameters: no.
LZWDecode8 Decompresses data encoded using the LZW (Lempel-Ziv-Welch) adaptive compression method, reproducing the original text or binary data.
Parameters: yes.
RunLengthDecode9 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.
Unknown10PdfFilter is not standard.
See Also