Enum Filter

pub enum Filter {
    AsciiHexDecode,
    Ascii85Decode,
    LzwDecode,
    FlateDecode,
    RunLengthDecode,
    CcittFaxDecode,
    Jbig2Decode,
    DctDecode,
    JpxDecode,
    Crypt,
}

A compression filter for a stream.

Variants

AsciiHexDecode

Ascii85Decode

LzwDecode

Lempel-Ziv-Welch (LZW) compression.

Note that this filter is forbidden in PDF/A.

FlateDecode

RunLengthDecode

CcittFaxDecode

Jbig2Decode

DctDecode

Decodes JPEG/JFIF files with a SOF0, SOF1, or (PDF 1.3+) SOF2 marker.

See ISO 32000-1:2008, Section 7.4.8 and Adobe Technical Note #5116.

JpxDecode

Decodes JPEG2000 files with a JPX baseline marker.

Note that additional restrictions are imposed by PDF/A and PDF/X.

Crypt

Encrypt the stream.

Note that this filter is restricted in PDF/A.

Trait Implementations

impl Clone for Filter

fn clone(&self) -> Filter

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Filter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Filter

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Filter

fn eq(&self, other: &Filter) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Filter

impl Eq for Filter

impl StructuralPartialEq for Filter