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    This version of the module is deprecated: Use moonbitlang/pdflite instead

    bobzhang/pdflite/core does not have a README file

    PdfBytes

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    type PdfBytes = Bytes

    PDF byte strings and byte streams.

    This is an alias for MoonBit Bytes because PDF strings and streams are byte sequences, not Unicode text. Use String only after an explicit PDF text decoding step.

    PdfError

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    pub(all) suberror PdfError {
      InvalidByte(Int)
      InvalidCursorPosition(Int)
      InvalidReadLength(Int)
      InvalidBit(Int)
      InvalidBitCount(Int)
      MatrixNotInvertable
      DictionaryExpected
      DictionaryKeyNotFound(PdfName)
      NumberExpected
      RectangleExpected
      BadRectangle
      MatrixMalformed
      InvalidHexEscape
      InvalidASCII85Data
      FilterNotSupported(PdfName)
      FilterExpected
      CCITTDecodeParmsExpected
      CCITTNotSupported(String)
      InvalidCCITTData
      PredictorExpected
      PredictorNotSupported(Int)
      InvalidLZWData
      InvalidFlateData
      ParseObjectExpected
      ParseArrayMalformed
      ParseSingleObjectExpected
      ParseIndirectObjectExpected
      ParseEndObjectExpected
      ParseStreamExpected
      ParseEndStreamExpected
      StreamLengthExpected
      StreamDataExpected
      ParsedObjectExpected
      PageTreeExpected
      PageRotationExpected(Int)
      ContentOperatorExpected
      ContentOperandExpected
      FunctionExpected
      FunctionNotSupported(Int)
      BadFunctionEvaluation(String)
      StartXRefExpected
      XRefExpected
      XRefEntryExpected
      TrailerExpected
      RootExpected
      BadRevision
      InvalidObjectNumber(Int)
      BadDate
      InvalidUnicodeCodepoint(Int)
      InvalidUTF16BE
      InvalidUTF8
      InvalidPDFDocEncoding(Int)
      CryptoKeyExpected
      InvalidCryptoDataLength(Int)
      EncryptionExpected
      EncryptionMethodExpected
      EncryptionDictionaryEntryExpected(PdfName)
      EncryptionDictionaryEntryTooShort(PdfName)
      EncryptionIDExpected
      EncryptionAuthenticationUnsupported(PdfCryptType)
      EncryptionObjectCryptUnsupported(PdfCryptType)
      EncryptionSavedStateExpected
      EncryptionRecryptUnsupported(PdfCryptType)
      EncryptionRecryptFailed
      EncryptionPermissionsCorrupt
      EncryptionPermissionsMismatch(Int, Int)
      RandomBytesUnavailable
      EncodingExpected
      EncodingDifferencesMalformed
      EncodingWriteUnsupported
      FontSubtypeExpected
      FontFlagsExpected
      StandardFontExpected
      BaseFontExpected
      FontFirstCharExpected
      FontLastCharExpected
      FontWidthsExpected
      FontWidthExpected
      FontCharProcsExpected
      FontTypeExpected
      FontWriteUnsupported
      AfmExpected
      ColourSpaceExpected
      BadText
      CIDSystemInfoExpected
      CIDRegistryExpected
      CIDOrderingExpected
      CIDSupplementExpected
      CIDBaseFontExpected
      CIDFontDescriptorExpected
      CIDWidthsExpected
      CIDWidths2Expected
      DescendantFontExpected
      CMapEncodingExpected
      PageLabelStyleExpected(String)
      EndOfInput
    } derive(Eq, ToJson, 
    Debug    )

    Error variants raised by pdflite parsing, writing, filtering, text, and encryption APIs.

    The variants intentionally stay specific enough for tests and callers to distinguish malformed input classes, while most public APIs expose them through the ordinary raise PdfError flow.

    PdfCryptType

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    pub(all) enum PdfCryptType {
      PdfCryptARC4(Int, Int)
      PdfCryptAESV2
      PdfCryptAESV3(Bool)
    } derive(Eq, ToJson, 
    Debug    )

    Object encryption algorithm used by the PDF security handlers.

    ARC4 carries key length in bits and security-handler revision. AESV3 carries whether the ISO/PDF 2.0 hash variant is in use.

    PdfName

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    pub(all) struct PdfName(Bytes) derive(Eq, ToJson, 
    Debug    )

    A PDF name token stored as its raw bytes without the leading slash.

    Names are byte-oriented in the PDF file format. Keeping the original bytes avoids accidental UTF-16 or UTF-8 interpretation while still allowing explicit views and owned-byte access.

    PdfName::byte_length

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    fn PdfName::byte_length(self : PdfName) -> Int

    Returns the byte length of this PDF name.

    PdfName::bytes

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    fn PdfName::bytes(self : PdfName) -> Bytes

    Returns the owned bytes backing this PDF name.

    PdfName::view

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    fn PdfName::view(self : PdfName) -> BytesView

    Returns a read-only view of the bytes backing this PDF name.

    pdf_byte_of_int

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    fn pdf_byte_of_int(value : Int) -> Byte raise PdfError

    Converts an integer to a byte.

    Raises PdfError::InvalidByte when value is outside 0..=255.

    pdf_bytes_concat_views

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    fn pdf_bytes_concat_views(parts : ArrayView[BytesView]) -> Bytes

    Concatenates byte views into one owned PDF byte sequence.

    pdf_bytes_copy

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    fn pdf_bytes_copy(values : BytesView) -> Bytes

    Copies a byte view into owned PDF bytes using indexed construction.

    This is useful when the input may alias data that will be mutated elsewhere.

    pdf_bytes_get

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    fn pdf_bytes_get(bytes : Bytes, index : Int) -> Byte?

    Returns the byte at index, or None when the index is out of bounds.

    pdf_bytes_length

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    fn pdf_bytes_length(bytes : Bytes) -> Int

    Returns the length of a PDF byte sequence.

    pdf_bytes_make

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    fn pdf_bytes_make(length : Int, value? : Int) -> Bytes raise PdfError

    Creates owned PDF bytes of length filled with value.

    The default value is zero. Raises PdfError::InvalidReadLength for negative lengths and PdfError::InvalidByte for values outside 0..=255.

    pdf_bytes_map_int

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    fn pdf_bytes_map_int(bytes : BytesView, f : (Int) -> Int) -> Bytes raise PdfError

    Maps every byte through an integer transformation and returns owned bytes.

    The callback receives each input byte as an Int. Raises PdfError::InvalidByte if a mapped value is outside 0..=255.

    pdf_bytes_of_array_view

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    fn pdf_bytes_of_array_view(values : ArrayView[Byte]) -> Bytes

    Copies an array view of bytes into owned PDF bytes.

    pdf_bytes_of_int_array

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    fn pdf_bytes_of_int_array(values : ArrayView[Int]) -> Bytes raise PdfError

    Converts integer byte values to owned PDF bytes.

    Raises PdfError::InvalidByte if any value is outside 0..=255.

    pdf_bytes_of_int_arrays

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    fn pdf_bytes_of_int_arrays(values : ArrayView[ArrayView[Int]]) -> Bytes raise PdfError

    Flattens arrays of integer byte values into owned PDF bytes.

    Raises PdfError::InvalidByte if any value is outside 0..=255.

    pdf_bytes_of_view

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    fn pdf_bytes_of_view(values : BytesView) -> Bytes

    Copies a byte view into owned PDF bytes.

    pdf_bytes_to_array

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    fn pdf_bytes_to_array(bytes : Bytes) -> Array[Byte]

    Copies PDF bytes into a resizable Array[Byte].

    pdf_bytes_to_fixed_array

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    fn pdf_bytes_to_fixed_array(bytes : Bytes) -> FixedArray[Byte]

    Copies PDF bytes into a fixed-size byte array.

    pdf_int_array_of_bytes

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    fn pdf_int_array_of_bytes(bytes : BytesView) -> Array[Int]

    Converts bytes to an array of integer byte values.

    pdf_is_delimiter_byte

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    fn pdf_is_delimiter_byte(value : Int) -> Bool

    Return whether a byte is a PDF token delimiter.

    Delimiters are parentheses, slash, angle brackets, square brackets, braces, and percent.

    pdf_is_newline_byte

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    fn pdf_is_newline_byte(value : Int) -> Bool

    Return whether a byte is a PDF line break byte.

    pdf_is_not_whitespace_byte

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    fn pdf_is_not_whitespace_byte(value : Int) -> Bool

    Return whether a byte is not PDF white space.

    pdf_is_whitespace_byte

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    fn pdf_is_whitespace_byte(value : Int) -> Bool

    Return whether a byte is PDF white space.

    Recognized values are NUL, horizontal tab, line feed, form feed, carriage return, and space.

    pdf_is_whitespace_or_delimiter_byte

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    fn pdf_is_whitespace_or_delimiter_byte(value : Int) -> Bool

    Return whether a byte terminates a regular PDF token.

    pdf_name_of_bytes

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    fn pdf_name_of_bytes(bytes : Bytes) -> PdfName

    Wraps owned bytes as a PDF name without copying.

    The bytes are expected to be the name payload without the leading slash.

    pdf_name_of_view

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    fn pdf_name_of_view(bytes : BytesView) -> PdfName

    Copies a byte view and wraps it as a PDF name.

    The bytes are expected to be the name payload without the leading slash.

    pdf_string_of_int_array

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    fn pdf_string_of_int_array(values : ArrayView[Int]) -> Bytes raise PdfError

    Compatibility alias for converting one integer byte array to PDF bytes.

    pdf_string_of_int_arrays

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    fn pdf_string_of_int_arrays(values : ArrayView[ArrayView[Int]]) -> Bytes raise PdfError

    Compatibility alias for pdf_bytes_of_int_arrays.

    CamlPDF models many byte strings as integer lists; this helper preserves that shape for callers ported from OCaml.

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